Wholesale Price

Gasket Price Asme B Gasket Price

30531

items found for asme b gasket. Comparing

asme b gasket prices

, you can buy quality asme b gasket at factory price / low price in China.

Spiral Wound Gasket Price Ring Joint Gasket Price Metal Jacketed Gasket Price Sealing Gasket Price Graphite Spiral Wound Gasket Price Flat Gasket Price

More

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

US$ 0.1-30 / Piece

1 Piece(MOQ)

Type: Flat Gasket

Material: Steel

Combination Washer Structure: A Type

Combination Washer Packaging: All Inclusive

Spring Washer Type: Standard

Packing: Wooden Case, Carton

QINGDAO CIERNE MECHANICAL PARTS CO., LTD.

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

US$ 0.1-10 / Piece

1 Piece(MOQ)

Type: Flat Gasket

Material: Steel

Combination Washer Structure: A Type

Spring Washer Type: Standard

Feature: High Temperature Resistance

Color: Sliver

QINGDAO CIERNE MECHANICAL PARTS CO., LTD.

Iron Flange Pipe Kit Metal Rx Bx R Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

Iron Flange Pipe Kit Metal Rx Bx R Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

Iron Flange Pipe Kit Metal Rx Bx R Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

Iron Flange Pipe Kit Metal Rx Bx R Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

Iron Flange Pipe Kit Metal Rx Bx R Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

Iron Flange Pipe Kit Metal Rx Bx R Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

Iron Flange Pipe Kit Metal Rx Bx R Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

US$ 0.1-30 / Piece

1 Piece(MOQ)

Structure: Single End

Pressure: High Pressure Mechanical Seals

Speed: Ultra-High-Speed Mechanical Seal

Temperature: High Temperature Mechanical Seal

Performance: Corrosion

Standard: Standard

QINGDAO CIERNE MECHANICAL PARTS CO., LTD.

R Series Oval Ring Joint Gasket for Flanges ASME B16.20

R Series Oval Ring Joint Gasket for Flanges ASME B16.20

R Series Oval Ring Joint Gasket for Flanges ASME B16.20

R Series Oval Ring Joint Gasket for Flanges ASME B16.20

R Series Oval Ring Joint Gasket for Flanges ASME B16.20

R Series Oval Ring Joint Gasket for Flanges ASME B16.20

US$ 10-30 / Piece

1 Piece(MOQ)

Material: SS304,SS316,8825

Application: Valve

Type: Oil Seal

Standard: R, BX

Packing: Wooden Case

Port: Shanghai

Jiangsu Meivalve Machinery Co., Ltd.

ASME B16.20 20in 150# SUS304 Metal Graphite Spiral Wound Gasket

ASME B16.20 20in 150# SUS304 Metal Graphite Spiral Wound Gasket

ASME B16.20 20in 150# SUS304 Metal Graphite Spiral Wound Gasket

ASME B16.20 20in 150# SUS304 Metal Graphite Spiral Wound Gasket

ASME B16.20 20in 150# SUS304 Metal Graphite Spiral Wound Gasket

ASME B16.20 20in 150# SUS304 Metal Graphite Spiral Wound Gasket

ASME B16.20 20in 150# SUS304 Metal Graphite Spiral Wound Gasket

US$ 0.2 / Piece

1 Piece(MOQ)

Type: Flat Gasket

Material: Stainless Steel

Combination Washer Structure: A Type

Combination Washer Packaging: All Inclusive

Spring Washer Type: Standard

Packing: Wooden Case or in Pallet

Hebei Shengtian Pipe-Fitting Group Co., Ltd.

ASME B16.20 6" 300# with Inner Ring and Outer Ring Spiral Wound Metal Gasket

ASME B16.20 6" 300# with Inner Ring and Outer Ring Spiral Wound Metal Gasket

ASME B16.20 6" 300# with Inner Ring and Outer Ring Spiral Wound Metal Gasket

ASME B16.20 6" 300# with Inner Ring and Outer Ring Spiral Wound Metal Gasket

ASME B16.20 6" 300# with Inner Ring and Outer Ring Spiral Wound Metal Gasket

ASME B16.20 6" 300# with Inner Ring and Outer Ring Spiral Wound Metal Gasket

ASME B16.20 6" 300# with Inner Ring and Outer Ring Spiral Wound Metal Gasket

US$ 0.1 / Piece

1 Piece(MOQ)

Material: Winding+Filler

Application: Flanges, Valves

Type: Stationary Seal

Performance: Wear

Shape: O-Ring

Standard: Standard, Nonstandard

Ningbo Dongheng Sealing Co., Ltd.

Free Sample ASME B16.20 Spiral Wound Gasket 400mm Stainless Steel Graphite Filler Spiral Wound Gasket

Free Sample ASME B16.20 Spiral Wound Gasket 400mm Stainless Steel Graphite Filler Spiral Wound Gasket

Free Sample ASME B16.20 Spiral Wound Gasket 400mm Stainless Steel Graphite Filler Spiral Wound Gasket

Free Sample ASME B16.20 Spiral Wound Gasket 400mm Stainless Steel Graphite Filler Spiral Wound Gasket

Free Sample ASME B16.20 Spiral Wound Gasket 400mm Stainless Steel Graphite Filler Spiral Wound Gasket

Free Sample ASME B16.20 Spiral Wound Gasket 400mm Stainless Steel Graphite Filler Spiral Wound Gasket

Free Sample ASME B16.20 Spiral Wound Gasket 400mm Stainless Steel Graphite Filler Spiral Wound Gasket

US$ 0.1-0.5 / Piece

1 Piece(MOQ)

Type: Flat Gasket

Material: Steel

Combination Washer Structure: A Type

Combination Washer Packaging: All Inclusive

Spring Washer Type: Standard

OEM&ODM: Yes

QINGDAO CIERNE MECHANICAL PARTS CO., LTD.

Ring Joint Gasket Ring Joint Gasket for API and ASME B16.20

Ring Joint Gasket Ring Joint Gasket for API and ASME B16.20

Ring Joint Gasket Ring Joint Gasket for API and ASME B16.20

Ring Joint Gasket Ring Joint Gasket for API and ASME B16.20

Ring Joint Gasket Ring Joint Gasket for API and ASME B16.20

Ring Joint Gasket Ring Joint Gasket for API and ASME B16.20

Ring Joint Gasket Ring Joint Gasket for API and ASME B16.20

US$ 0.1-30 / Piece

1 Piece(MOQ)

Structure: Single End

Pressure: High Pressure Mechanical Seals

Speed: Ultra-High-Speed Mechanical Seal

Temperature: High Temperature Mechanical Seal

Performance: Corrosion

Standard: Standard

QINGDAO CIERNE MECHANICAL PARTS CO., LTD.

Custom Aluminum Sheet Laser Cutting Stamping Gasket Metal Punching Gasket

Custom Aluminum Sheet Laser Cutting Stamping Gasket Metal Punching Gasket

Custom Aluminum Sheet Laser Cutting Stamping Gasket Metal Punching Gasket

Custom Aluminum Sheet Laser Cutting Stamping Gasket Metal Punching Gasket

Custom Aluminum Sheet Laser Cutting Stamping Gasket Metal Punching Gasket

Custom Aluminum Sheet Laser Cutting Stamping Gasket Metal Punching Gasket

Custom Aluminum Sheet Laser Cutting Stamping Gasket Metal Punching Gasket

US$ 1-3 / Piece

100 Pieces(MOQ)

Standard: GB, EN, China GB Code, JIS Code, ASME

Tolerance: 0.01mm

Surface Treatment: Polishing

Machining Method: Laser Cutting

Material: SPCC

Material Thickness: 1--8mm

HEBEI GIONLEE MACHINERY EQUIPMENT SALES CO., LTD.

Custom Galvanized Steel/Stainless Steel Flat Corner Brace for Furniture Hardware Swivel Bearing Gasket

Custom Galvanized Steel/Stainless Steel Flat Corner Brace for Furniture Hardware Swivel Bearing Gasket

Custom Galvanized Steel/Stainless Steel Flat Corner Brace for Furniture Hardware Swivel Bearing Gasket

Custom Galvanized Steel/Stainless Steel Flat Corner Brace for Furniture Hardware Swivel Bearing Gasket

Custom Galvanized Steel/Stainless Steel Flat Corner Brace for Furniture Hardware Swivel Bearing Gasket

Custom Galvanized Steel/Stainless Steel Flat Corner Brace for Furniture Hardware Swivel Bearing Gasket

Custom Galvanized Steel/Stainless Steel Flat Corner Brace for Furniture Hardware Swivel Bearing Gasket

US$ 0.1 / Piece

1000 Pieces(MOQ)

Standard: GB, API650, China GB Code, JIS Code, TEMA, ASME

Tolerance: +/-0.01mm

Surface Treatment: Powder Coated

Machining Method: CNC Stamping

Material: Stainless Steel

Product Name: Manufacturer Pencil Holder Clip Metal Hangable Por

Dongguan Yubiao Hardware Co., Ltd.

ASME B16.20 SS304 SS316 Spiral Wound Gasket

ASME B16.20 SS304 SS316 Spiral Wound Gasket

ASME B16.20 SS304 SS316 Spiral Wound Gasket

ASME B16.20 SS304 SS316 Spiral Wound Gasket

ASME B16.20 SS304 SS316 Spiral Wound Gasket

ASME B16.20 SS304 SS316 Spiral Wound Gasket

ASME B16.20 SS304 SS316 Spiral Wound Gasket

US$ 0.1-10 / Piece

1 Piece(MOQ)

Type: Flat Gasket

Material: Steel

Combination Washer Structure: A Type

Spring Washer Type: Standard

Feature: High Temperature Resistance

Color: Sliver

QINGDAO CIERNE MECHANICAL PARTS CO., LTD.

321/316/304/Low Carbon Steel R Ring Joint Gasket /Octagonal Rtj Gasket ASME B16.20 Flange Rtj Gasket

321/316/304/Low Carbon Steel R Ring Joint Gasket /Octagonal Rtj Gasket ASME B16.20 Flange Rtj Gasket

321/316/304/Low Carbon Steel R Ring Joint Gasket /Octagonal Rtj Gasket ASME B16.20 Flange Rtj Gasket

321/316/304/Low Carbon Steel R Ring Joint Gasket /Octagonal Rtj Gasket ASME B16.20 Flange Rtj Gasket

321/316/304/Low Carbon Steel R Ring Joint Gasket /Octagonal Rtj Gasket ASME B16.20 Flange Rtj Gasket

321/316/304/Low Carbon Steel R Ring Joint Gasket /Octagonal Rtj Gasket ASME B16.20 Flange Rtj Gasket

321/316/304/Low Carbon Steel R Ring Joint Gasket /Octagonal Rtj Gasket ASME B16.20 Flange Rtj Gasket

US$ 0.1-30 / Piece

1 Piece(MOQ)

Structure: Single End

Pressure: High Pressure Mechanical Seals

Speed: Ultra-High-Speed Mechanical Seal

Temperature: High Temperature Mechanical Seal

Performance: Corrosion

Standard: Standard

QINGDAO CIERNE MECHANICAL PARTS CO., LTD.

Wholesale Galvanized Gaskets of Various Sizes

Wholesale Galvanized Gaskets of Various Sizes

Wholesale Galvanized Gaskets of Various Sizes

Wholesale Galvanized Gaskets of Various Sizes

Wholesale Galvanized Gaskets of Various Sizes

US$ 0.4-0.6 / Piece

100 Pieces(MOQ)

Standard: GB, EN, China GB Code, JIS Code, ASME

Tolerance: +/-0.01mm

Surface Treatment: Electroplating

Machining Method: CNC Stamping

Material: SPCC

Material Thickness: 1--8mm

HEBEI GIONLEE MACHINERY EQUIPMENT SALES CO., LTD.

ASME B16.20 Inconel 625 600 601 Octagonal Ring Joint Gasket 1500lbs

ASME B16.20 Inconel 625 600 601 Octagonal Ring Joint Gasket 1500lbs

ASME B16.20 Inconel 625 600 601 Octagonal Ring Joint Gasket 1500lbs

ASME B16.20 Inconel 625 600 601 Octagonal Ring Joint Gasket 1500lbs

ASME B16.20 Inconel 625 600 601 Octagonal Ring Joint Gasket 1500lbs

ASME B16.20 Inconel 625 600 601 Octagonal Ring Joint Gasket 1500lbs

ASME B16.20 Inconel 625 600 601 Octagonal Ring Joint Gasket 1500lbs

US$ 0.1-30 / Piece

1 Piece(MOQ)

Structure: Single End

Pressure: High Pressure Mechanical Seals

Speed: Ultra-High-Speed Mechanical Seal

Temperature: High Temperature Mechanical Seal

Performance: Corrosion

Standard: Standard

QINGDAO CIERNE MECHANICAL PARTS CO., LTD.

API ASME Flange 316 Seal Metal Ring Joint Gasket Oval Octagonal R Rx Bx Type Series Style Ring Gasket for Oilfield Flange

API ASME Flange 316 Seal Metal Ring Joint Gasket Oval Octagonal R Rx Bx Type Series Style Ring Gasket for Oilfield Flange

API ASME Flange 316 Seal Metal Ring Joint Gasket Oval Octagonal R Rx Bx Type Series Style Ring Gasket for Oilfield Flange

API ASME Flange 316 Seal Metal Ring Joint Gasket Oval Octagonal R Rx Bx Type Series Style Ring Gasket for Oilfield Flange

API ASME Flange 316 Seal Metal Ring Joint Gasket Oval Octagonal R Rx Bx Type Series Style Ring Gasket for Oilfield Flange

API ASME Flange 316 Seal Metal Ring Joint Gasket Oval Octagonal R Rx Bx Type Series Style Ring Gasket for Oilfield Flange

API ASME Flange 316 Seal Metal Ring Joint Gasket Oval Octagonal R Rx Bx Type Series Style Ring Gasket for Oilfield Flange

US$ 0.1-30 / Piece

1 Piece(MOQ)

Type: Flat Gasket

Material: Steel

Combination Washer Structure: A Type

Combination Washer Packaging: All Inclusive

Spring Washer Type: Standard

Packing: Wooden Case, Carton

QINGDAO CIERNE MECHANICAL PARTS CO., LTD.

ASME B16.20/ API 6A /API 17D Stainless Steel 304 316 High Pressure Ring Type Joint (RTJ) Flanged Gasket

ASME B16.20/ API 6A /API 17D Stainless Steel 304 316 High Pressure Ring Type Joint (RTJ) Flanged Gasket

ASME B16.20/ API 6A /API 17D Stainless Steel 304 316 High Pressure Ring Type Joint (RTJ) Flanged Gasket

ASME B16.20/ API 6A /API 17D Stainless Steel 304 316 High Pressure Ring Type Joint (RTJ) Flanged Gasket

ASME B16.20/ API 6A /API 17D Stainless Steel 304 316 High Pressure Ring Type Joint (RTJ) Flanged Gasket

ASME B16.20/ API 6A /API 17D Stainless Steel 304 316 High Pressure Ring Type Joint (RTJ) Flanged Gasket

ASME B16.20/ API 6A /API 17D Stainless Steel 304 316 High Pressure Ring Type Joint (RTJ) Flanged Gasket

US$ 1.1 / Piece

1 Piece(MOQ)

Type: Flat Gasket

Material: Stainless Steel

Combination Washer Structure: A Type

Combination Washer Packaging: All Inclusive

Spring Washer Type: Standard

Certificates: CE/ ISO / SGS / BV

ZHEJIANG CHENGJIU PIPELINE CO., LTD.

OEM Sheet Metal Stamping Punching Gaskets

OEM Sheet Metal Stamping Punching Gaskets

OEM Sheet Metal Stamping Punching Gaskets

OEM Sheet Metal Stamping Punching Gaskets

OEM Sheet Metal Stamping Punching Gaskets

OEM Sheet Metal Stamping Punching Gaskets

US$ 0.3-3 / Piece

1000 Pieces(MOQ)

Standard: GB, EN, ASME

Tolerance: +/-0.01mm

Surface Treatment: Powder Coated

Machining Method: Stamping

Material: Stainless Steel

Certification: ISO 9001

HEBEI GIONLEE MACHINERY EQUIPMENT SALES CO., LTD.

OEM Carbon Steel Stainless Steel Stamping Punching Bending Pins/Gasket

OEM Carbon Steel Stainless Steel Stamping Punching Bending Pins/Gasket

OEM Carbon Steel Stainless Steel Stamping Punching Bending Pins/Gasket

OEM Carbon Steel Stainless Steel Stamping Punching Bending Pins/Gasket

OEM Carbon Steel Stainless Steel Stamping Punching Bending Pins/Gasket

OEM Carbon Steel Stainless Steel Stamping Punching Bending Pins/Gasket

OEM Carbon Steel Stainless Steel Stamping Punching Bending Pins/Gasket

US$ 0.66-1.76 / Piece

100 Pieces(MOQ)

Standard: GB, EN, ASME

Tolerance: +/-0.10mm

Surface Treatment: Powder Coated

Machining Method: CNC Stamping

Material: Stainless Steel

MOQ: 100

HEBEI GIONLEE MACHINERY EQUIPMENT SALES CO., LTD.

Quality Assurance Spiral Wound Gasket (ASME B16.2)

Quality Assurance Spiral Wound Gasket (ASME B16.2)

Quality Assurance Spiral Wound Gasket (ASME B16.2)

Quality Assurance Spiral Wound Gasket (ASME B16.2)

Quality Assurance Spiral Wound Gasket (ASME B16.2)

Quality Assurance Spiral Wound Gasket (ASME B16.2)

Quality Assurance Spiral Wound Gasket (ASME B16.2)

US$ 0.1-10 / Piece

1 Piece(MOQ)

Type: Flat Gasket

Material: Steel

Combination Washer Structure: A Type

Spring Washer Type: Standard

Feature: High Temperature Resistance

Color: Sliver

QINGDAO CIERNE MECHANICAL PARTS CO., LTD.

Iron Flange Pipe Kit Metal Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

Iron Flange Pipe Kit Metal Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

Iron Flange Pipe Kit Metal Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

Iron Flange Pipe Kit Metal Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

Iron Flange Pipe Kit Metal Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

Iron Flange Pipe Kit Metal Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

Iron Flange Pipe Kit Metal Stainless Steel S316 S304 ASME B16.20 Ring Joint Gaskets

US$ 0.1-30 / Piece

1 Piece(MOQ)

Structure: Single End

Pressure: High Pressure Mechanical Seals

Speed: Ultra-High-Speed Mechanical Seal

Temperature: High Temperature Mechanical Seal

Performance: Corrosion

Standard: Standard

QINGDAO CIERNE MECHANICAL PARTS CO., LTD.

Ring Joint Gasket (RTJ) ASME B16.20 in Pipe Flange

Ring Joint Gasket (RTJ) ASME B16.20 in Pipe Flange

Ring Joint Gasket (RTJ) ASME B16.20 in Pipe Flange

Ring Joint Gasket (RTJ) ASME B16.20 in Pipe Flange

Ring Joint Gasket (RTJ) ASME B16.20 in Pipe Flange

Ring Joint Gasket (RTJ) ASME B16.20 in Pipe Flange

Ring Joint Gasket (RTJ) ASME B16.20 in Pipe Flange

US$ 0.1-30 / Piece

1 Piece(MOQ)

Structure: Single End

Pressure: High Pressure Mechanical Seals

Speed: Ultra-High-Speed Mechanical Seal

Temperature: High Temperature Mechanical Seal

Performance: Corrosion

Standard: Standard

QINGDAO CIERNE MECHANICAL PARTS CO., LTD.

Customized Thick Disc Heavy Iron Stamping Stainless Steel Flange Gasket

Customized Thick Disc Heavy Iron Stamping Stainless Steel Flange Gasket

Customized Thick Disc Heavy Iron Stamping Stainless Steel Flange Gasket

Customized Thick Disc Heavy Iron Stamping Stainless Steel Flange Gasket

Customized Thick Disc Heavy Iron Stamping Stainless Steel Flange Gasket

Customized Thick Disc Heavy Iron Stamping Stainless Steel Flange Gasket

Customized Thick Disc Heavy Iron Stamping Stainless Steel Flange Gasket

US$ 0.04-2 / Piece

1000 Pieces(MOQ)

Application: Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory

Standard: GB, EN, China GB Code, JIS Code, ASME

Surface Treatment: Electroplating

Production Type: Mass Production

Machining Method: CNC Machining

Material: Steel, Brass, Alloy, Copper, Aluminum, Iron, Stainless Steel

HEBEI GIONLEE MACHINERY EQUIPMENT SALES CO., LTD.

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

US$ 1-10 / Piece

5 Pieces(MOQ)

Style: O Ring

Function: Fixed Sealing, Hole Sealing

Application: Equipment Seal, Flange Seal, Pump Seal

Shape (For Gasket): Flat Gasket

Material: Metal

Standard: Standard

Wenzhou Zhenghai Sealing Co., Ltd

ASME B16.20, API, DIN Spiral Wound Gasket

ASME B16.20, API, DIN Spiral Wound Gasket

ASME B16.20, API, DIN Spiral Wound Gasket

ASME B16.20, API, DIN Spiral Wound Gasket

ASME B16.20, API, DIN Spiral Wound Gasket

ASME B16.20, API, DIN Spiral Wound Gasket

ASME B16.20, API, DIN Spiral Wound Gasket

US$ 0.1-10 / Piece

1 Piece(MOQ)

Style: O Ring

Function: Fixed Sealing, Hole Sealing

Application: Equipment Seal, Flange Seal, Pump Seal

Shape (For Gasket): Flat Gasket

Material: Metal

Standard: Standard

Wenzhou Zhenghai Sealing Co., Ltd

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

US$ 1-10 / Piece

5 Pieces(MOQ)

Style: O Ring

Function: Fixed Sealing, Hole Sealing

Application: Equipment Seal, Flange Seal, Pump Seal

Shape (For Gasket): Flat Gasket

Material: Metal

Standard: Standard

Wenzhou Zhenghai Sealing Co., Ltd

Qbh ANSI/ASME B 18.21.1 Standard Customized External Internal Toothed Tooth Teeth Serrated Bearing Valve Seat Gasket

Qbh ANSI/ASME B 18.21.1 Standard Customized External Internal Toothed Tooth Teeth Serrated Bearing Valve Seat Gasket

Qbh ANSI/ASME B 18.21.1 Standard Customized External Internal Toothed Tooth Teeth Serrated Bearing Valve Seat Gasket

Qbh ANSI/ASME B 18.21.1 Standard Customized External Internal Toothed Tooth Teeth Serrated Bearing Valve Seat Gasket

US$ 0.1 / Piece

10000 Pieces(MOQ)

Type: Flat Gasket

Material: Carbon Steel

Combination Washer Structure: A Type

Combination Washer Packaging: All Inclusive

Spring Washer Type: Standard

Process: Cold Forming

Jiaxing City Qunbang Hardware Co., Ltd.

Wenzhou API ASME B16.20 Rtj Forged Metal Rx R Bx Ring Joint Gasket

Wenzhou API ASME B16.20 Rtj Forged Metal Rx R Bx Ring Joint Gasket

Wenzhou API ASME B16.20 Rtj Forged Metal Rx R Bx Ring Joint Gasket

Wenzhou API ASME B16.20 Rtj Forged Metal Rx R Bx Ring Joint Gasket

Wenzhou API ASME B16.20 Rtj Forged Metal Rx R Bx Ring Joint Gasket

Wenzhou API ASME B16.20 Rtj Forged Metal Rx R Bx Ring Joint Gasket

Wenzhou API ASME B16.20 Rtj Forged Metal Rx R Bx Ring Joint Gasket

US$ 1 / Piece

1 Piece(MOQ)

Structure: O Type

Pressure: High Pressure Mechanical Seals

Speed: General Speed Mechanical Seal

Temperature: High Temperature Mechanical Seal

Performance: High Pressure

Standard: Standard

Wenzhou Kasin Valve Pipe Fitting Co., Ltd.

Pump Sealing Metal Gasket ASME Standard

Pump Sealing Metal Gasket ASME Standard

Pump Sealing Metal Gasket ASME Standard

Pump Sealing Metal Gasket ASME Standard

Pump Sealing Metal Gasket ASME Standard

Pump Sealing Metal Gasket ASME Standard

Pump Sealing Metal Gasket ASME Standard

US$ 0.5-5 / Piece

10 Pieces(MOQ)

Material: 304ss;316ss;CS;Graphite

Application: Flange&Valve&Oil Pipe

Type: Cg;Cgi

Performance: High Pressure&Temperature

Shape: Spiral

Standard: Standard, Nonstandard, ASME B16.20, API, DIN

China Ningbo Seal & Gasket Co., Ltd.

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

Flexible Graphite/PTFE Spiral Wound Gaskets, API ASME/ANSI Spiral Wound Gaskets

US$ 7-11 / kg

1 kg(MOQ)

Type: Flat Gasket

Material: PTFE

Combination Washer Structure: B Type

Combination Washer Packaging: All Inclusive

Spring Washer Type: Standard

Packing: Wooden Box

Yangzhong Dongxu Polymer Material Co., Ltd.

ASME B16.20 SS304 SS316 Spiral Wound Gasket

ASME B16.20 SS304 SS316 Spiral Wound Gasket

ASME B16.20 SS304 SS316 Spiral Wound Gasket

ASME B16.20 SS304 SS316 Spiral Wound Gasket

ASME B16.20 SS304 SS316 Spiral Wound Gasket

ASME B16.20 SS304 SS316 Spiral Wound Gasket

ASME B16.20 SS304 SS316 Spiral Wound Gasket

US$ 0.3 / Piece

1000 Pieces(MOQ)

Type: Spring Washer

Material: Stainless Steel

Combination Washer Structure: A Type

Combination Washer Packaging: All Inclusive

Spring Washer Type: Standard

Standard: ASME B16.20

Guangzhou Kingmetal Steel Industry Co., Ltd.

Fp02/Fp04/Fp08/Fp10/Fp14/Fp16/Fp20 Gasket for Plate Heat Exchanger

Fp02/Fp04/Fp08/Fp10/Fp14/Fp16/Fp20 Gasket for Plate Heat Exchanger

Fp02/Fp04/Fp08/Fp10/Fp14/Fp16/Fp20 Gasket for Plate Heat Exchanger

Fp02/Fp04/Fp08/Fp10/Fp14/Fp16/Fp20 Gasket for Plate Heat Exchanger

Fp02/Fp04/Fp08/Fp10/Fp14/Fp16/Fp20 Gasket for Plate Heat Exchanger

Fp02/Fp04/Fp08/Fp10/Fp14/Fp16/Fp20 Gasket for Plate Heat Exchanger

Fp02/Fp04/Fp08/Fp10/Fp14/Fp16/Fp20 Gasket for Plate Heat Exchanger

US$ 1-30 / Piece

1 Piece(MOQ)

Material: Rubber Gasket

Usage: Machinery, Heat Exchangers

Type: Solid Core Sealing Strip

Sectional Shape: Rectangle

Performance: Corrosion

Vulcanization: Continuous Vulcanization

KDP Machinery Jiangsu Co., Ltd.

Gasket of Plate Heat Exchanger Spares for Customzied Design

Gasket of Plate Heat Exchanger Spares for Customzied Design

Gasket of Plate Heat Exchanger Spares for Customzied Design

Gasket of Plate Heat Exchanger Spares for Customzied Design

Gasket of Plate Heat Exchanger Spares for Customzied Design

Gasket of Plate Heat Exchanger Spares for Customzied Design

Gasket of Plate Heat Exchanger Spares for Customzied Design

US$ 1-20 / Piece

1 Piece(MOQ)

Material: Rubber Gasket

Usage: Machinery, Heat Exchangers

Type: Solid Core Sealing Strip

Sectional Shape: Rectangle

Performance: Corrosion

Vulcanization: Continuous Vulcanization

KDP Machinery Jiangsu Co., Ltd.

HNBR Viton FKM Replacement Gasket for All Brands Plate Heat Exchanger Gasket

HNBR Viton FKM Replacement Gasket for All Brands Plate Heat Exchanger Gasket

HNBR Viton FKM Replacement Gasket for All Brands Plate Heat Exchanger Gasket

HNBR Viton FKM Replacement Gasket for All Brands Plate Heat Exchanger Gasket

HNBR Viton FKM Replacement Gasket for All Brands Plate Heat Exchanger Gasket

HNBR Viton FKM Replacement Gasket for All Brands Plate Heat Exchanger Gasket

HNBR Viton FKM Replacement Gasket for All Brands Plate Heat Exchanger Gasket

US$ 1-30 / Piece

1 Piece(MOQ)

Material: Rubber Gasket

Usage: Machinery, Heat Exchangers

Type: Solid Core Sealing Strip

Sectional Shape: Rectangle

Performance: Corrosion

Vulcanization: Continuous Vulcanization

KDP Machinery Jiangsu Co., Ltd.

RF Flanges ASME B16.5 Spiral Wound Gaskets ASME B16.20

RF Flanges ASME B16.5 Spiral Wound Gaskets ASME B16.20

RF Flanges ASME B16.5 Spiral Wound Gaskets ASME B16.20

RF Flanges ASME B16.5 Spiral Wound Gaskets ASME B16.20

RF Flanges ASME B16.5 Spiral Wound Gaskets ASME B16.20

RF Flanges ASME B16.5 Spiral Wound Gaskets ASME B16.20

RF Flanges ASME B16.5 Spiral Wound Gaskets ASME B16.20

US$ 0.06-0.1 / Piece

1 Piece(MOQ)

Type: Flat Gasket

Material: Carbon Steel

Combination Washer Structure: A Type

Combination Washer Packaging: All Inclusive

Spring Washer Type: Standard

Steel Grade: SS304 SS316

Hebei Pipefun Pipe and Pipe Fitting Facility Co., Ltd.

ASME B16.20 Rtj Soft Iron Octagonalring Joint Flange Gasket

ASME B16.20 Rtj Soft Iron Octagonalring Joint Flange Gasket

ASME B16.20 Rtj Soft Iron Octagonalring Joint Flange Gasket

ASME B16.20 Rtj Soft Iron Octagonalring Joint Flange Gasket

ASME B16.20 Rtj Soft Iron Octagonalring Joint Flange Gasket

ASME B16.20 Rtj Soft Iron Octagonalring Joint Flange Gasket

ASME B16.20 Rtj Soft Iron Octagonalring Joint Flange Gasket

US$ 0.07-0.09 / Piece

1000 Pieces(MOQ)

Material: HNBR

Application: Car

Type: Rotary Seal

Performance: Temperature

Shape: O-Ring

Standard: Standard

Suzhou Flying Eagle Sealed Technical Co., Ltd.

ASME B16.21, Class 150 Flat Face Compressed Non-Asbestos Sheet Fiber Flat Gasket

ASME B16.21, Class 150 Flat Face Compressed Non-Asbestos Sheet Fiber Flat Gasket

ASME B16.21, Class 150 Flat Face Compressed Non-Asbestos Sheet Fiber Flat Gasket

ASME B16.21, Class 150 Flat Face Compressed Non-Asbestos Sheet Fiber Flat Gasket

ASME B16.21, Class 150 Flat Face Compressed Non-Asbestos Sheet Fiber Flat Gasket

ASME B16.21, Class 150 Flat Face Compressed Non-Asbestos Sheet Fiber Flat Gasket

ASME B16.21, Class 150 Flat Face Compressed Non-Asbestos Sheet Fiber Flat Gasket

US$ 0.1 / Piece

500 Pieces(MOQ)

Material: NBR

Application: Valve

Type: Valve Sealing

Performance: Temperature

Shape: O-Ring

Standard: Standard

Jiangsu Sealstars Sealing Technology Co., Ltd.

ASME Standard Spiral Wound Gasket of Sunwell Sealing Gasket

ASME Standard Spiral Wound Gasket of Sunwell Sealing Gasket

ASME Standard Spiral Wound Gasket of Sunwell Sealing Gasket

ASME Standard Spiral Wound Gasket of Sunwell Sealing Gasket

ASME Standard Spiral Wound Gasket of Sunwell Sealing Gasket

ASME Standard Spiral Wound Gasket of Sunwell Sealing Gasket

ASME Standard Spiral Wound Gasket of Sunwell Sealing Gasket

US$ 0.99-99 / Piece

10 Pieces(MOQ)

Material: Ss316L, 304 CS, Graphite

Application: Electric

Type: Shaft Seal

Performance: High Pressure

Shape: O-Ring

Standard: Standard, Nonstandard

Ningbo Sunwell Sealing Materials Co., Ltd.

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

Outer Ring Inner Ring Stainless Steel Carbon Steel Spiral Wound Gaskets 304/Graphite+304/CS 4" 150# RF ASME B16.20 Gasket

US$ 2.5-2.66 / Piece

100 Pieces(MOQ)

Type: spiral Wound Gasket

Material: Carbon Steel

Combination Washer Structure: Type IBC - RF

Combination Washer Packaging: All Inclusive

Spring Washer Type: Standard

Standard: ASME B16.20

CZIT DEVELOPMENT CO., LTD.

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

ASME B16.20, API, DIN Spiral Wound Gasket/Metal Jacketed Gaskets

US$ 1-10 / Piece

5 Pieces(MOQ)

Style: O Ring

Function: Fixed Sealing, Hole Sealing

Application: Equipment Seal, Flange Seal, Pump Seal

Shape (For Gasket): Flat Gasket

Material: Metal

Standard: Standard

Wenzhou Zhenghai Sealing Co., Ltd

316ss ASME Spiral Wound Gasket 15 Years of Manufacturing Experience (SWG) with Outer and Inner Ring 1/2"~60" Industry Standard

316ss ASME Spiral Wound Gasket 15 Years of Manufacturing Experience (SWG) with Outer and Inner Ring 1/2"~60" Industry Standard

316ss ASME Spiral Wound Gasket 15 Years of Manufacturing Experience (SWG) with Outer and Inner Ring 1/2"~60" Industry Standard

316ss ASME Spiral Wound Gasket 15 Years of Manufacturing Experience (SWG) with Outer and Inner Ring 1/2"~60" Industry Standard

316ss ASME Spiral Wound Gasket 15 Years of Manufacturing Experience (SWG) with Outer and Inner Ring 1/2"~60" Industry Standard

316ss ASME Spiral Wound Gasket 15 Years of Manufacturing Experience (SWG) with Outer and Inner Ring 1/2"~60" Industry Standard

316ss ASME Spiral Wound Gasket 15 Years of Manufacturing Experience (SWG) with Outer and Inner Ring 1/2"~60" Industry Standard

US$ 0.15 / Piece

10 Pieces(MOQ)

Material: Metal+Filler Material

Application: Pipe,Flange,Valve,Pump

Type: Oil Seal

Performance: High Pressure

Shape: O-Ring

Standard: Standard

Ningbo Rilson Sealing Material Co., Ltd.

RF JIS DIN BS ASME B16.5 PTFE Plastic White Flange Gasket DN Standard Expanded PTFE Gasket

RF JIS DIN BS ASME B16.5 PTFE Plastic White Flange Gasket DN Standard Expanded PTFE Gasket

RF JIS DIN BS ASME B16.5 PTFE Plastic White Flange Gasket DN Standard Expanded PTFE Gasket

RF JIS DIN BS ASME B16.5 PTFE Plastic White Flange Gasket DN Standard Expanded PTFE Gasket

US$ 25 / Piece

1 Piece(MOQ)

Material: NBR

Application: Bearing

Type: Shaft Seal

Performance: High Pressure

Shape: O-Ring

Body Material: PTFE

ZHEJIANG CHENGJIU PIPELINE CO., LTD.

Spiral Wound Gasket Made of 304ss, 316ss, ASME B16.20, API, DIN

Spiral Wound Gasket Made of 304ss, 316ss, ASME B16.20, API, DIN

Spiral Wound Gasket Made of 304ss, 316ss, ASME B16.20, API, DIN

Spiral Wound Gasket Made of 304ss, 316ss, ASME B16.20, API, DIN

Spiral Wound Gasket Made of 304ss, 316ss, ASME B16.20, API, DIN

Spiral Wound Gasket Made of 304ss, 316ss, ASME B16.20, API, DIN

Spiral Wound Gasket Made of 304ss, 316ss, ASME B16.20, API, DIN

US$ 0.1-10 / Piece

1 Piece(MOQ)

Style: O Ring

Function: Fixed Sealing, Hole Sealing

Application: Equipment Seal, Flange Seal, Pump Seal

Shape (For Gasket): Flat Gasket

Material: Metal

Standard: Standard

Wenzhou Zhenghai Sealing Co., Ltd

ASME B16.20 Monel Spiral Wound Gasket

ASME B16.20 Monel Spiral Wound Gasket

ASME B16.20 Monel Spiral Wound Gasket

ASME B16.20 Monel Spiral Wound Gasket

ASME B16.20 Monel Spiral Wound Gasket

ASME B16.20 Monel Spiral Wound Gasket

ASME B16.20 Monel Spiral Wound Gasket

US$ 1-1000 / Piece

1 Piece(MOQ)

Material: Monel Inner and Outer Ring

Application: Flanges

Type: Pipeline Seal

Performance: Seal

Shape: O-Ring

Standard: Standard

Xiamen Qishine Imp.&Exp. Co., Ltd.

High Strength Fastener 8.8 Washer ASME ANSI B18.22.1 Washers and Gasket

High Strength Fastener 8.8 Washer ASME ANSI B18.22.1 Washers and Gasket

High Strength Fastener 8.8 Washer ASME ANSI B18.22.1 Washers and Gasket

High Strength Fastener 8.8 Washer ASME ANSI B18.22.1 Washers and Gasket

High Strength Fastener 8.8 Washer ASME ANSI B18.22.1 Washers and Gasket

High Strength Fastener 8.8 Washer ASME ANSI B18.22.1 Washers and Gasket

High Strength Fastener 8.8 Washer ASME ANSI B18.22.1 Washers and Gasket

US$ 0.3 / Piece

10000 Pieces(MOQ)

Type: Spring Washer

Material: Carbon Steel Stainless Steel

Combination Washer Structure: A Type

Combination Washer Packaging: All Inclusive

Spring Washer Type: Standard

Packing: Carbon Pkg

Handan Chuyu Fastener Manufacturing Co., Ltd.

API 6A ASME B16.20 R Series Bx Rx Metal Sealing Gasket

API 6A ASME B16.20 R Series Bx Rx Metal Sealing Gasket

API 6A ASME B16.20 R Series Bx Rx Metal Sealing Gasket

API 6A ASME B16.20 R Series Bx Rx Metal Sealing Gasket

API 6A ASME B16.20 R Series Bx Rx Metal Sealing Gasket

API 6A ASME B16.20 R Series Bx Rx Metal Sealing Gasket

API 6A ASME B16.20 R Series Bx Rx Metal Sealing Gasket

US$ 1-1000 / Piece

1 Piece(MOQ)

Material: Steel

Application: Valve

Type: Oil Seal

Performance: Seal

Standard: Standard

Delivery: 2-4 Weeks

Xiamen Qishine Imp.&Exp. Co., Ltd.

Wholesale OEM/ODM Basic Mining Machinery/Equipment Parts Sand Casting Engine Gasket Bracket with CNC Machining Precision Casting Precision Casting

Wholesale OEM/ODM Basic Mining Machinery/Equipment Parts Sand Casting Engine Gasket Bracket with CNC Machining Precision Casting Precision Casting

Wholesale OEM/ODM Basic Mining Machinery/Equipment Parts Sand Casting Engine Gasket Bracket with CNC Machining Precision Casting Precision Casting

Wholesale OEM/ODM Basic Mining Machinery/Equipment Parts Sand Casting Engine Gasket Bracket with CNC Machining Precision Casting Precision Casting

Wholesale OEM/ODM Basic Mining Machinery/Equipment Parts Sand Casting Engine Gasket Bracket with CNC Machining Precision Casting Precision Casting

Wholesale OEM/ODM Basic Mining Machinery/Equipment Parts Sand Casting Engine Gasket Bracket with CNC Machining Precision Casting Precision Casting

Wholesale OEM/ODM Basic Mining Machinery/Equipment Parts Sand Casting Engine Gasket Bracket with CNC Machining Precision Casting Precision Casting

US$ 3-5 / Piece

200 Pieces(MOQ)

Certification: CE, RoHS, ISO 9001:2000, ISO 9001:2008

Standard: AISI, ASME, BS, ANSI, JIS, GB, GOST, ASTM, DIN

Surface Treatment: Spray-Paint

Manufacturing Process: Casting

Material: Stainless Steel

Packing: Wooden Case

Sino Industry and Trade Co., Ltd.

Customized CNC Fabrication Parts Auto / Motorcycle Pipe Seal Gasket, Graphite / Metal Exhaust Gasket

Customized CNC Fabrication Parts Auto / Motorcycle Pipe Seal Gasket, Graphite / Metal Exhaust Gasket

Customized CNC Fabrication Parts Auto / Motorcycle Pipe Seal Gasket, Graphite / Metal Exhaust Gasket

Customized CNC Fabrication Parts Auto / Motorcycle Pipe Seal Gasket, Graphite / Metal Exhaust Gasket

Customized CNC Fabrication Parts Auto / Motorcycle Pipe Seal Gasket, Graphite / Metal Exhaust Gasket

Customized CNC Fabrication Parts Auto / Motorcycle Pipe Seal Gasket, Graphite / Metal Exhaust Gasket

Customized CNC Fabrication Parts Auto / Motorcycle Pipe Seal Gasket, Graphite / Metal Exhaust Gasket

US$ 2.65-9.85 / Piece

10 Pieces(MOQ)

Application: Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory, as Per Drawing

Standard: GB, EN, API650, China GB Code, JIS Code, TEMA, ASME, as Your Requirements

Surface Treatment: Anodizing, Brush, Coating, Plating etc

Production Type: Batch Production

Machining Method: CNC Machining

Material: Nylon, Steel, Plastic, Brass, Alloy, Copper, Aluminum, Iron, Custom Machining

SZ LCH INDUSTRY CO., LTD

Stamp with Carbon Steel Flat Flange Washer Gasket

Stamp with Carbon Steel Flat Flange Washer Gasket

Stamp with Carbon Steel Flat Flange Washer Gasket

Stamp with Carbon Steel Flat Flange Washer Gasket

US$ 0.25-1.9 / Piece

500 Pieces(MOQ)

After-sales Service: Free Replacement

Warranty: 2 Years

Condition: New

Certification: CE, RoHS, GS, ISO9001

Standard: DIN, ASTM, GOST, GB, JIS, ANSI, BS, GB, En, China GB Code, JIS Code, Tema, ASME

Customized: Customized

Xiamen HiuGong Machinery Co., Ltd.

Related Categories: Industrial Equipment & Components Ball Valve (5231) Gasket & Washer (3621) Seal Ring (3117) Flange (2119) Gate Valve (1543); More

Also Shop in

Wholesale Asme B Gasket

Cheap Asme B Gasket

Asme B Gasket Products

Sourcing Request