Home Supplier Discovery Industrial Equipment & Components Mechanical Seal

Ningbo Mechanical Seals Manufacturers & Suppliers

Ningbo Mechanical Seals Total 220 manufacturers & suppliers found with 660 products

Ningbo Head Pump (Group) Co., Ltd.

China Supplier - Diamond MemberSince 2022

Suppliers with verified business licenses

5.0
Plant Area1000
Plant Area
Manufacturer/Factory
Hose Pump , Peristaltic Pump , Household Booster System , Industrial Pressurized System , Building Pressurization System
OEM, ODM
ISO 9001, ISO 9000
  • Double Mechanical Seal for Grundfos
    US$ 10 / Piece
    10 Pieces (MOQ)
  • Type EDM Double Cartridge Mechanical Seals for Industrial Pumps
    US$ 165 / Piece
    10 Pieces (MOQ)
  • Stainless Steel Automatic Cryogenic Mechanical Seal
    US$ 80 / Piece
    10 Pieces (MOQ)

Ningbo Tiansun International Trade Co., Ltd.

China Supplier - Gold MemberSince 2022

Suppliers with verified business licenses

4.0
Plant Area500
Plant Area
Manufacturer/Factory
Mechanical Seals , Pump Seals , Stationery Seal Ring , Sic Ring , Tc Ring
OEM, ODM, Own Brand, Customization
ISO 9001, ISO 14001, HSE, QC 080000, BSCI...
  • OEM GLF Seal Mechanical Shaft Seal 22mm for GLF Pump
    US$ 15 / Piece
    5 Pieces (MOQ)
  • Elastomer Bellow Shaft Mechanical Seals TS1
    US$ 20 / Piece
    5 Pieces (MOQ)
  • JC 59U Unbalaced Chemical Mechanical Seals for The Pump
    US$ 15 / Piece
    5 Pieces (MOQ)

CIXI GNYAR BEARING CO., LTD.

China Supplier - Diamond MemberSince 2018

Suppliers with verified business licenses

5.0
Plant Area2000+
Plant Area
Manufacturer/Factory
Ball Bearing , Roller Bearing , Pillow Block Bearing , Transmission Parts , Solder Wire
OEM, ODM, Own Brand
ISO 9001, IATF16949, BSCI
  • Excavator Parts Oil Seals for Boom Arm Bucket Cylinder Hydraulic Mechanical Seal Kit with Rubber O Ring Sealing Chemical Material
    US$ 0.01 / Piece
    500 Pieces (MOQ)
  • Hot Sales Rotary Shaft Mechanical Seal NBR/FKM Rubber Tc Tg Type Spare Parts Oil Seal
    US$ 0.01 / Piece
    500 Pieces (MOQ)
  • Hot Sales Rotary Shaft Mechanical Seal NBR/FKM Rubber Tc Tg Type Skeleton Oil Seal
    US$ 0.01 / Piece
    500 Pieces (MOQ)

Zhejiang Top Sealing and Insulation Co., Ltd.

China Supplier - Gold MemberSince 2021

Suppliers with verified business licenses

4.0
Plant Area2000+
Plant Area
Number of Employees86
Number of Employees
Manufacturer/Factory , Trading Company
Gland Packing , Graphite Products , Glass Fiber Products , Ceramic Fiber Products , ISO Tank Container Accessories
Own Brand, ODM, OEM
Others
  • Hot Sale Graphite Ramie 20X20mm PTFE Gland Packing Mechanical Seal Manufacturers
    US$ 11 / kg
    100 kg (MOQ)
  • High Pressure Fpa FEP O-Ring Rubber Seal Mechanical Seal Oring Silicone
    US$ 2 / Piece
    1000 Pieces (MOQ)
  • Hand Cutter for Soft Gaskets
    US$ 290 / Set
    1 Set (MOQ)

Ningbo High-Tech Park Unimolding Rubber & Plastic Parts Co., Ltd.

China Supplier - Gold MemberSince 2005

Suppliers with verified business licenses

4.0
Plant Area114
Plant Area
Number of Employees15
Number of Employees
Trading Company
Rubber Bushing , Rubber Buffer , Rubber Mount , Rubber Grommet , CNC Machining Parts
OEM, ODM
ISO 9001
  • Custom Rubber Seals/OEM O Ring/Mechanical Seal/Conveyor Sealing System Rubber
    US$ 0.5 / Piece
    1000 Pieces (MOQ)
  • Custom Rubber Seals with High Quality/Mechanical Seal/O Ring
    US$ 0.05 / Piece
    1000 Pieces (MOQ)
  • Oring and Sealing/Sealing Gasket/Mechanical Seal/Compression NBR
    US$ 0.5 / Piece
    1000 Pieces (MOQ)

Ningbo Xintai Industry and Trade Co., Ltd.

China Supplier - Diamond MemberSince 2021

Suppliers with verified business licenses

5.0
Plant Area1000
Plant Area
Number of Employees29
Number of Employees
Manufacturer/Factory , Trading Company
Hydraulic fitting , Hydraulic hose fitting , Hose fitting , Hydraulic pipe fitting , Hydraulic adapter
OEM
ISO9001:2015
  • Water Pump Mechanical Oil Seals Stainless Steel Shaft Water Oil Seal for Control Sealing
    US$ 0.1 / Piece
    1500 Pieces (MOQ)
  • PTFE Shaft Sleeve Double Lips Mechanical Oil Seal
    US$ 0.1 / Piece
    1500 Pieces (MOQ)
  • 155 Industrial-Duty Elastomer Bellows Shaft Seals Water Pump Mechanical Oil Seals Mechanical Shaft Seal
    US$ 0.1 / Piece
    1500 Pieces (MOQ)

Ningbo Yineng Hydraulics Co., Ltd.

China Supplier - Diamond MemberSince 2023

Suppliers with verified business licenses

5.0
Plant Area50
Plant Area
Number of Employees5
Number of Employees
Trading Company
Pump Parts; Hydraulic Pump
OEM, ODM, Own Brand, Neutral
ISO 9001
  • Hydraulic Pump Viton Seal Shaft Seal for Sauer Sunderstrand PV23 Spv23 Mechanical Seal
    US$ 20 / Piece
    1 Piece (MOQ)
  • Hydraulic Pump Shaft Seal Mechanical Seal for Sauer PV20 PV21 PV22 PV23 PV24 PV25 PV26
    US$ 20 / Piece
    1 Piece (MOQ)
  • Hydraulic Pump Viton Seal Shaft Seal for Sauer Sunderstrand PV25 Spv25 Mechanical Seal
    US$ 25 / Piece
    1 Piece (MOQ)

Ningbo Boman Mechanical & Technology Co., Ltd.

China Supplier - Diamond MemberSince 2017

Suppliers with verified business licenses

5.0
Plant Area500
Plant Area
Manufacturer/Factory
Oil Seal , O Ring , Customize Molded Rubber Part , Bonded Seal , Extrusion Strip
OEM, ODM, Own Brand
ISO 9001, ISO 14001, ISO 20000, IATF16949
  • Tc/Sc/DC Oil Seals Mechanical Seals Factory Oil Seals
    US$ 0.001 / Piece
    100 Pieces (MOQ)
  • Tc Oil Seals Mechanical Seals Factory Oil Seals
    US$ 0.01 / Piece
    100 Pieces (MOQ)
  • OEM/ODM EPDM/NBR/Silicone Mechanical Oil Gasket Rubber Seal
    US$ 0.001 / Piece
    100 Pieces (MOQ)

AIRMAX AL CO., LIMITED

China Supplier - Diamond MemberSince 2016

Suppliers with verified business licenses

5.0
Plant Area800
Plant Area
Number of Employees10
Number of Employees
Manufacturer/Factory , Trading Company
Metal Parts
ODM, OEM
ISO 9000, ISO 14001
  • OEM Sheet Metal Fabrications Auto Cooling Pump Seal Mechanical Seal
    US$ 0.05 / Piece
    50000 Pieces (MOQ)
  • Automobile Water Pump Water Seal Auto Cooling Pump Seal
    US$ 0.05 / Piece
    50000 Pieces (MOQ)
  • OEM Auto Cooling Pump Seal Automobile Water Pump Water Seal Metal Stamping Parts
    US$ 0.05 / Piece
    50000 Pieces (MOQ)

Ningbo Shenlian Rubber Sealing Elements Co., Ltd.

China Supplier - Diamond MemberSince 2014

Suppliers with verified business licenses

5.0
Plant Area2000
Plant Area
Manufacturer/Factory , Trading Company
Sealing , Weather Strip , Door Sealing , Rubber Products , Gasket
OEM, ODM
ISO 9001
  • EPDM Bulb Weather Strip Seal for Mechanical and Electrical Cabinet
    US$ 0.25 / Meter
    300 Meters (MOQ)
  • Factory Supply Rubber Trim Molding Seal
    US$ 0.15 / Meter
    2000 Meters (MOQ)
  • Hot Sale EPDM Foam Door Seal Strip
    US$ 0.15 / Meter
    2000 Meters (MOQ)

Cixi Lixu Rubber Products Co., Ltd.

China Supplier - Diamond MemberSince 2024

Suppliers with verified business licenses

5.0
Plant Area2000
Plant Area
Number of Employees33
Number of Employees
Manufacturer/Factory , Trading Company
Rubber O-ring , Rubber Gasket , Customized Parts , O-ring Kits
ODM, OEM
Response Time≤3h
  • Green, Blue, Black 70-90sh HNBR O Ring, Oring, O-Ring Seal
    US$ 0.001 / Piece
    5000 Pieces (MOQ)
  • Customized Micro Rubber Seal NBR FKM Ffkm O-Ring Seals
    US$ 0.001 / Piece
    5000 Pieces (MOQ)
  • Food Grade Silicon Seal Oring Manufacturer Rubber O Ring
    US$ 0.001 / Piece
    5000 Pieces (MOQ)

China Ningbo Seal & Gasket Co., Ltd.

China Supplier - Gold MemberSince 2016

Suppliers with verified business licenses

4.0
Plant Area45
Plant Area
Number of Employees2
Number of Employees
Trading Company
Gasket , Compressed Fiber Jointing Sheet , Graphite Sheet , Gland Braided Packing , PTEF Products
OEM, ODM, Own Brand
ISO 9001
  • Gasket Seals Spiral Wound SS316 with Graphite Filler
    US$ 0.5 / Piece
    10 Pieces (MOQ)
  • Swg Gasket Spiral Wound Used for Flange, Pipe, Valve Seal
    US$ 0.5 / Piece
    10 Pieces (MOQ)
  • Mechanical and Olil Sealing Spiral Wound Gasket
    US$ 0.5 / Piece
    10 Pieces (MOQ)

NINGBO YINZHOU BETON SEAL CO., LTD

China Supplier - Gold MemberSince 2014

Suppliers with verified business licenses

4.0
Plant Area1350
Plant Area
Number of Employees12
Number of Employees
Manufacturer/Factory , Trading Company
Mechanical Seal , Pump Seal , Mechanical Seal Repair , Tungsten Carbide , Carbon
ODM, OEM
ISO 9001
  • Mechanical Seal for Haigh Macerators B28 3
    Negotiable
    1 Set (MOQ)
  • Elastomer Bellow Mechanical Seal (B1A) 6 for John Crane 1A
    Negotiable
    5 Sets (MOQ)
  • Cartridge Mechanical Seal (B710) 1
    Negotiable
    1 Piece (MOQ)

DELSON RUBBER AND HARDWARE TOOLS CO., LTD.

China Supplier - Gold MemberSince 2011

Suppliers with verified business licenses

4.0
Plant Area2000+
Plant Area
Manufacturer/Factory , Trading Company
O Ring , O Ring Kit , Rubber Cord , Rubber Gasket , Copper Washer
OEM, ODM
ISO 9001, ISO 9000, ISO 14001
  • Upgrades Type Excavator Oring for Sumitomo Mechanical Seal
    US$ 2.58 / Set
    20 Sets (MOQ)
  • Upgrades Type Excavator Oring for Volvo Mechanical Seal
    US$ 2.58 / Set
    20 Sets (MOQ)
  • Upgrades Type Excavator Oring for Komatsu Mechanical Seal
    US$ 2.58 / Set
    20 Sets (MOQ)

Ningbo Lancaster Industry and Trading Co., Ltd.

China Supplier - Diamond MemberSince 2019

Suppliers with verified business licenses

5.0
Plant Area2000
Plant Area
Number of Employees88
Number of Employees
Manufacturer/Factory , Trading Company
Auto Shock Absorber Accessories
ODM, OEM
N/A
  • Custom-Made Mechanical Industry Stamping Parts 304 316 Stainless Steel Gasket Non-Standard
    US$ 0.5 / Piece
    100 Pieces (MOQ)
  • Washer Flat Ring Gasket for Mechanical
    US$ 0.1 / Piece
    500 Pieces (MOQ)
  • 304 Stainless Steel Flat Washer Plain Washer Gaskets
    US$ 0.5 / Piece
    100 Pieces (MOQ)

Ningbo Yiweiai Rubber & Plastic Technology Co., Ltd.

China Supplier - Gold MemberSince 2013

Suppliers with verified business licenses

4.0
Plant Area2000+
Plant Area
Number of Employees79
Number of Employees
Manufacturer/Factory , Trading Company
EVA Foam and Products
ODM, OEM
ISO 9001
  • Waterproof Eco-Friendly High Quality Wholesale EVA Rubber Mechanical Sealing Gasket
    US$ 1 / Piece
    10000 Pieces (MOQ)
  • Colorful EVA Gasket for Sealing with Different Size and Thickness
    US$ 1 / Piece
    10000 Pieces (MOQ)
  • China Manufacture Factory Price Wholesale EVA Sealing Gasket for Machines
    US$ 1 / Piece
    10000 Pieces (MOQ)

Yuyao Tongchuang Thermal Insulation & Sealing Factory

China Supplier - Gold MemberSince 2016

Suppliers with verified business licenses

4.0
Annual Revenue9.15 Mil
Annual Revenue
Plant Area1000
Plant Area
Number of Employees42
Number of Employees
Manufacturer/Factory , Trading Company
Ceramic Fiber Textiles , Fiberglass Textiles , Basalt Fiber Textiles , Gland Packing
Own Brand, OEM
ISO9001:2008
  • High Pressure Mechanical Seal Pure Graphite Gland Packing
    US$ 15 / KGS
    20 KGS (MOQ)
  • Pure Expanded Graphite Gland Packing for Pump and Valve
    US$ 15 / KGS
    20 KGS (MOQ)
  • High Temperature Resistance Fiberglass Seal Ring Gasket
    US$ 7 / Piece
    5 Pieces (MOQ)

Ningbo Sunwell Sealing Materials Co., Ltd.

China Supplier - Gold MemberSince 2011

Suppliers with verified business licenses

4.0
Plant Area2000+
Plant Area
Manufacturer/Factory
Gasket , Braided Packing , Compression Sheets , Sealing Equipments , Sealing Gaskets
OEM, Own Brand
ISO 9001
  • ASME Standard Spiral Wound Gasket of Sunwell Sealing Gasket
    US$ 0.99 / Piece
    10 Pieces (MOQ)
  • Mineral Fiber Rubber Sheet Oil-Resisting Non-Asbestos Sheet, 100% Non Asbestos Sheet Gaskets
    Negotiable
    2 SHEETS (MOQ)
  • Nuclear Graphite Spiral Wound Gasket Sunwell
    US$ 2 / Piece
    50 Pieces (MOQ)

Ningbo Ruifeng Sealing Materials Co., Ltd.

China Supplier - Diamond MemberSince 2007

Suppliers with verified business licenses

5.0
Plant Area2000+
Plant Area
Number of Employees30
Number of Employees
Manufacturer/Factory , Trading Company
Fiberglass , Gasket , PTFE , Gland Packing
Own Brand, ODM, OEM
ISO9001:2015
  • Heat Resistant Sealing Material Aramid Fiber Packing Braided Packing
    US$ 10 / kg
    100 kg (MOQ)
  • Graphite PTFE Braided Packing Sealing Gasket
    US$ 8.5 / kg
    300 kg (MOQ)
  • Rubber Asbestos Packing Braided Packing Gasket
    US$ 1.25 / kg
    100 kg (MOQ)

Ningbo Xurong International Trading Co., Ltd.

China Supplier - Diamond MemberSince 2011

Suppliers with verified business licenses

5.0
Plant Area500
Plant Area
Manufacturer/Factory , Trading Company
Auto Part , Auto Filter , Engine Part , Filter , Gasket
OEM, ODM, Own Brand
ISO 9001
  • Mechanical Seal Engine Gasket for Hyundai Lantra/Matrix
    US$ 0.5 / Piece
    500 Pieces (MOQ)
  • Mechanical Seal Engine Head Gasket for Hyundai Accent/Excel
    US$ 0.5 / Piece
    500 Pieces (MOQ)
  • Motorcycle Parts Cylinder Gasket for Hyundai Elanta
    US$ 0.5 / Piece
    500 Pieces (MOQ)

D&A Rubber Industries Ltd.

China Supplier - Gold MemberSince 2014

Suppliers with verified business licenses

4.0
Plant Area2000+
Plant Area
Manufacturer/Factory
Rubber Sealing Profile , Silicone Extrusion , Silicone Profile , EPDM Gasket , HVAC Gasket
OEM, ODM, Own Brand
within 15 workdays
  • Extruded Rubber O-Ring Cord Gasket
    US$ 0.1 / Meter
    1000 Meters (MOQ)
  • OEM Rubber Grooved Coupling Gasket
    US$ 0.2 / Piece
    1000 Pieces (MOQ)
  • Ductile Iron Pipe Sealing Gasket/EPDM
    US$ 1 / Piece
    1000 Pieces (MOQ)

Ningbo Dongheng Sealing Co., Ltd.

China Supplier - Diamond MemberSince 2024

Suppliers with verified business licenses

5.0
Plant Area2000+
Plant Area
Number of Employees28
Number of Employees
Manufacturer/Factory , Trading Company
Sealing Materials , Spiral Wound Gasket , PTFE Tape , PTFE Gasket
ODM, OEM, Own Brand
ISO9001:2015
  • Outer Ring Spiral Winding Metal Gasket ASME B16.20
    US$ 0.1 / Piece
    1 Piece (MOQ)
  • Inner Ring and Outer Ring Spiral Metal Gasket
    US$ 0.1 / Piece
    1 Piece (MOQ)

NINGBO CILIANG IMPORT AND EXPORT CO., LTD.

China Supplier - Diamond MemberSince 2020

Suppliers with verified business licenses

5.0
Plant Area500
Plant Area
Manufacturer/Factory , Trading Company
Dehumidifier , Portable Air Conditioner , Split Air Conditioner , Cordless Vacuum Cleaner , LED TV
OEM, ODM, Own Brand
ISO 9001, ISO 14001
  • Customizable Silicone O Ring Rubber Seal Ring Nitrile Sealing Gasket Mechanical Parts Gasket
    US$ 0.79 / Set
    100 Sets (MOQ)

Ningbo Zhixin Metal Product Co., Ltd

China Supplier - Diamond MemberSince 2022

Suppliers with verified business licenses

5.0
Plant Area1000
Plant Area
Manufacturer/Factory , Trading Company
Fastener , Tool Set , Sheet Metal Fabrication , Metal Stamping Part , CNC Machining Parts
ISO 9001, ISO 14001, OHSAS/ OHSMS 18001, HSE, BSCI
Ningbo, Zhejiang
  • Automotive Water Pump Mechanical Seal
    US$ 0.1 / Piece
    1000 Pieces (MOQ)

Ningbo Rilson Sealing Material Co., Ltd.

China Supplier - Diamond MemberSince 2007

Suppliers with verified business licenses

5.0
Plant Area2000+
Plant Area
Manufacturer/Factory , Trading Company
Spiral Wound Gasket , Ring Joint Gasket , Sealing Gasket Material , Sealing Material
OEM, ODM, Own Brand
ISO 9001
  • Non-Metallic Flat Gasket for Industrial Sealing (RS7)
    US$ 0.1 / Piece
    5 Pieces (MOQ)
  • Kammprofile / Serrated/Camprofile/Grooved Gaskets with Integral Outer Ring
    US$ 0.25 / Piece
    100 Pieces (MOQ)
  • 316ss ASME Spiral Wound Gasket (SWG) with Outer and Inner Ring
    US$ 0.28 / Piece
    50 Pieces (MOQ)

Ningbo Jalyn International Trading Co., Ltd.

China Supplier - Diamond MemberSince 2007

Suppliers with verified business licenses

5.0
Plant Area2000+
Plant Area
Manufacturer/Factory , Trading Company
Motorcycle Parts , Motorcycle Accessories , Aftermarket Motorcycle Parts , ATV Parts , Bicycle Parts
OEM
ISO 9001
  • Motorcycle Spare Part Motorcycle Rubber Seal Ring NBR FKM Viton O-Ring Shock Absorber Oil Seal 31X43X10.5
    US$ 0.01 / Piece
    200 Pieces (MOQ)
  • High Quality Motorcycle Front Fork NBR Shock Absorber Oil Seal FKM O-Ring 31X43X10.3
    US$ 0.01 / Piece
    200 Pieces (MOQ)
  • Motorcycle Spare Parts Motorcycle Gasket Set for YAMAHA 150
    US$ 0.3 / Set
    500 Sets (MOQ)

NINGBO YINZHOU GET MACHINERY LTD.

China Supplier - Diamond MemberSince 2020

Suppliers with verified business licenses

5.0
Plant Area2000+
Plant Area
Manufacturer/Factory , Trading Company
Hydraulic Breaker Chisel , Hydraulic Breaker , Hydraulic Breaker Spare Parts , Hydraulic Breaker Pistons , Hydraulic Breaker Bushes
OEM, Own Brand
within 15 workdays
  • High Quality Hydraulic Breaker Seal Kit Repair Kit Famous Brand Manufacturer for Sb20 Sb30 Sb35 Sb40 Sb43 Sb50 Sb60 Sb70 Sb81 Sb100 Sb121 Sb131 Sb151
    US$ 10 / Set
    1 Set (MOQ)
  • Seal Kits for Hydraulic Breaker Excavator Parts Seals Hydraulic Breaker Seal Kits Hb20g Hb30g Hb40g F22 F35 F45 DMB210 MB1500 DMB210 DMB230
    US$ 10 / Set
    1 Set (MOQ)
  • High Quality Hydraulic Breaker Seal Kits Excavator Seals Hydraulic Seals Hydraulic Breaker Spare Parts
    US$ 10 / Set
    1 Set (MOQ)

Yuyao Tianyi Special Carbon Fiber Co., Ltd.

China Supplier - Gold MemberSince 2013

Suppliers with verified business licenses

4.0
Plant Area2000+
Plant Area
Number of Employees36
Number of Employees
Manufacturer/Factory , Trading Company
Fire Blanket;?Welding Blanket
ODM, OEM
ISO 9001, BSCI
  • Flexible Graphite Packing Reinforced with Carbonized Fiber in Corners
    US$ 28 / kg
    50 kg (MOQ)
  • Ignition Loss Free Flexible Graphite Braided Packing
    US$ 28 / kg
    50 kg (MOQ)
  • Aramid & PTFE Fiber Packing with Graphite
    US$ 28 / kg
    50 kg (MOQ)

Ningbo Yombo Rubber & Plastic Products Co., Ltd.

China Supplier - Diamond MemberSince 2006

Suppliers with verified business licenses

5.0
Number of Employees3
Number of Employees
Manufacturer/Factory , Trading Company
Plastic Products , Rubber Products , Silicon Rubber Products , Rubber Roof Flashing , Roof Flashing
OEM
ISO9001:2015, IATF16949
  • Flange Seal for OEM Higher Quanlity
    US$ 0.3 / Piece
    100 Pieces (MOQ)
  • Hole Sealing for Any Rubber Material
    US$ 0.02 / Piece
    100 Pieces (MOQ)
  • Rubber Seal (YB-03)
    US$ 0.3 / Piece
    100 Pieces (MOQ)

Cixi Kent Bearing Co., Ltd.

China Supplier - Diamond MemberSince 2019

Suppliers with verified business licenses

5.0
Plant Area2000+
Plant Area
Manufacturer/Factory , Trading Company
Deep Groove Ball Bearing , Pillow Block Bearing , Slinder Guider
OEM, Own Brand
ISO 9001
  • Factory Wholesale High Performance Spherical Roller Bearings Mechanical Components 20204 20205 20206 20207 20208 20209 20210
    US$ 5 / Piece
    1 Piece (MOQ)
  • Provide to Kazakhstan Pillow Block Bearing UCP207 UCP208 UCP209 UCP210
    US$ 0.1 / Piece
    1000 Pieces (MOQ)
  • Dgbb 98305 98205 Special Bearing Series Deep Groove Ball Bearing Open by Cixi Kent Bearing Factory
    US$ 0.2 / Piece
    1000 Pieces (MOQ)
Items per Page: 10 | 30 | 50
1 2 3 4 5 6 7 8