Home
Supplier Discovery
Tools & Hardware
Grinding Wheel
Steel Abrasive Factories & Companies
Filter
Category
Chemicals
Construction & Decoration
Electrical & Electronics
Manufacturing & Processing Machinery
Metallurgy, Mineral & Energy
More
Management Certification
ISO9001:2008
Others
ISO9001:2015
ISO14001:2015
ISO45001:2016
More
R&D Capacity
OEM
ODM
Own Brand
Others
Annual Revenue
<1 Million USD
1 ~ 2.5 Million USD
2.5 ~ 5 Million USD
5 ~ 10 Million USD
10 ~ 50 Million USD
More
No.of Employees
Less than 5 People
5-50 People
51-200 People
201-500 People
501-1000 People
More
Province & Region
Anhui
Beijing
Chongqing
Fujian
Gansu
More
about steel abrasive
Technological Innovation
Reliable Supply Chains
Substantial Manufacturing Capabilities
steel abrasive
4,000+ factories verified
Zouping Xinyuan Metal Abrasive Co., Ltd.
13 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Steel Shot Abrasives for Shot Peening Aerospace and Automotive Parts
US$
499.00
-
699.00
1 Ton
(MOQ)
Steel Shot Abrasives for Coating Removal and Surface Roughening
US$
499.00
-
699.00
1 Ton
(MOQ)
High Strength Steel Shot Abrasives for Structural Steel Blasting
US$
499.00
-
699.00
1 Ton
(MOQ)
Durable Steel Shot Abrasives for Foundry and Metal Casting Industries
US$
499.00
-
699.00
1 Ton
(MOQ)
1/4
Zhengzhou Kingdragon Abrasives Co., Ltd.
9 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Alumina Oxide 4" 100mm Hole 16mm Abrasive Tool Grit 60 #27 Extreme Performance for Stainless Steel Cleaning, Derusting, Deburring
US$
0.13
-
0.87
20,000 Pieces
(MOQ)
Zirconia Flap Disc Grinding Wheel Hot Sale Abrasive Tools Shutter Wheel Flap Disc for Metal Stainless Steel Polishing Abrasive
US$
0.13
-
0.67
20,000 Pieces
(MOQ)
Stainless Steel Polishing Grinding Wheel Abrasive Flap Disc Extreme Performance
US$
0.13
-
0.67
20,000 Pieces
(MOQ)
5" 125mm Slotted Flap Disc for Stainless Steel with Zirconia Abrasive Grain
US$
0.60
-
0.90
1,000 Pieces
(MOQ)
1/4
Zhejiang Wanna Industry & Trade Co., Ltd.
Send Inquiry
4.5inch Super Thin Abrasive Cutting Stainless Steels Flat T41 115mm
US$
0.09
-
0.99
5,000 Pieces
(MOQ)
T41 180X1.6mm Flat Center Reinforced Abrasive Steel
US$
0.20
-
0.40
5,000 Pieces
(MOQ)
4 1/2 Inox Abrasives Hot Selling Cut for Stainless Steel 115X1X22.2mm Disco De Corte
US$
0.19
-
0.51
3,000 Pieces
(MOQ)
Wholesale China 115X3X22mm Diameter Ceramic Bonded White Aluminum Oxide Abrasive
US$
0.10
-
1.60
3,000 Pieces
(MOQ)
1/4
Zhengzhou Yaxin Superhard Materials Co., Ltd.
20 yrs
·
5.0
·
Manufacturer/Factory
Send Inquiry
CBN Metal Bond Abrasive for Finishing Tool Steel Polishing Aluminum Punch Blades
US$
60.10
-
70.12
1 Piece
(MOQ)
OEM Factory 50mm CBN Bonded Abrasive for High Speed Steel Tool Refurbishment
US$
22.67
-
29.77
1 Piece
(MOQ)
Premium CBN Abrasives Compatible with Sunnen K12-Nm05 for Hard Steel
US$
5.00
-
9.00
1 Piece
(MOQ)
Customized CBN Vitrified Abrasive Disc for High Speed Steel Tool Maintenance
US$
22.67
-
29.77
1 Piece
(MOQ)
1/4
Xingtai Double Rockets Resin Grinding Wheel Co., Ltd
Send Inquiry
9 Inch 230*6*22.23mm Grinding Wheel Abrasive for Metal Stainless Steel Manufacturers Price
US$
0.70
-
0.80
100 Pieces
(MOQ)
Free Sample Hot Sale 107 Cutting Disc and Cutting Wheel Abrasive for Metal / Stainless Steel China Factory
US$
0.065
1,000 Pieces
(MOQ)
7" Inches 180X3X22.23mm Grinding Wheel Cutting Disc Abrasive for Metal Stainless Steel Inox Iron Double Rockets Cut off Wheel
US$
0.36
-
0.45
1,000 Pieces
(MOQ)
Sharp and Durable 9" Inch 230X1.9X22.23mm Cutting Disk Cut off Wheel Abrasive for Metal Stainless Steel Inox Iron
US$
0.40
-
0.548
1,000 Pieces
(MOQ)
1/4
SHANDONG KAITAI SHOT BLASTING MACHINERY SHARE CO., LTD.
18 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Steel Cut Wire Shot Metal Abrasives for Surface Treatment
US$
650.00
-
750.00
1 Ton
(MOQ)
High Quality Cast Steel Grit G25 Steel Metal Abrasives for Blasting Machine
US$
620.00
-
650.00
1 Ton
(MOQ)
Conditioned High Quality Steel Cut Wire Shot/Grit/Abrasive for Blasing/Sandblasting/Blaster/Abrator/Cleaning/Descaling
US$
650.00
-
750.00
1 Ton
(MOQ)
Abrasive Recovery for Steel Shot/ Steel Grit
US$
155.00
1 Piece
(MOQ)
1/4
Jinan Junda Industrial Technology Co., Ltd.
Send Inquiry
6-80 Mesh Steel Slag Blasting Media Abrasive Grain Sizes for Sand Blasting Use for Various Abrasive Applications
US$
110.00
-
130.00
1 Ton
(MOQ)
ISO Steel Grit Abrasive for Sandblast
US$
413.00
-
780.00
5 Tons
(MOQ)
Factory Steel Grit Abrasive for Polishing and Sandblasting
US$
409.00
-
542.00
25 Tons
(MOQ)
Factory Directly Provide High Clean Level Steel Shot Abrasive S280 for Peening
US$
325.00
-
487.00
5 Tons
(MOQ)
1/4
Henan Becens Minerals Co., Ltd
Send Inquiry
High Purity Abrasive Steel Shot/Grit, Hardness HRC40-50, Special for Automotive Wheel Peening/Mechanical Deburring
US$
500.00
-
700.00
1 Ton
(MOQ)
Industrial Steel Grit Abrasive Media for Heavy Duty Sandblasting/Metal Surface Cleaning/Paint Stripping in Construction Projects
US$
600.00
-
700.00
1 Ton
(MOQ)
OEM Grain Sizes Recyclable Blasting Media Shot Peening Abrasive Steel Shot Steel Grit
US$
600.00
-
700.00
1 Ton
(MOQ)
High Hardness Abrasive Steel Grit Sandblasting Rust Removal Metal Surface Treatment Cast Steel Grit SAE Standard Recyclable Steel Structure Cleaning Coating Adh
US$
500.00
-
600.00
1 Ton
(MOQ)
1/4
Foshan OPO Abrasives Co., Ltd
Send Inquiry
Versatile Abrasive Wheel for Superior Stainless Steel Surface Treatment
US$
3.00
10 Pieces
(MOQ)
Premium Abrasive Polishing Pads for Stainless Steel Kitchenware
US$
3.00
10 Pieces
(MOQ)
Abrasive Wheel Emery Cloth Wheel Polishing Wheel Flap Wheel for Efficient Polishing of Stainless Steel and Aluminium
US$
3.00
10 Pieces
(MOQ)
Premium Abrasive Wheels for Stainless Steel Finishing and Polishing
US$
3.00
10 Pieces
(MOQ)
1/4
Hangzhou Shunjie Machinery Technology Co., Ltd.
Send Inquiry
Holdwin 150# Glass Beads Sandblasting Glass Sand Bright Sand Abrasive Reflective Material Stainless Steel Polishing
US$
74.00
-
89.00
25 kg
(MOQ)
Holdwin Brown Aluminium Oxide Grit for Steel Sandblasting Corundum Powder Abrasive for Refractory
US$
1.65
-
1.83
1 kg
(MOQ)
Holdwin Glass Beads Stainless Steel Polishing Road Reflective Abrasives Factory Price
US$
72.00
-
83.00
25 kg
(MOQ)
Holdwin Jewelry Abrasive Glass Beads Blasting Machine From China Factory for Aluminum Parts Stainless Steel
US$
70.00
-
80.00
25 kg
(MOQ)
1/3
Shanxi Bigstars Superabrasive Tools And Products Co; Ltd
5.0
Send Inquiry
Abrasive Honing Stick Aluminum Oxide Honing Stones for Steel Bush Honing
US$
0.80
100 Pieces
(MOQ)
Cylinder Abrasive Honing Stones Aluminum Oxide Steel Liner
US$
0.80
100 Pieces
(MOQ)
Polish Pipe Steel Tube Equivalent Sunnen Abrasive Tool Honing Stone H70A45 Guide Shoes
US$
10.00
10 Pieces
(MOQ)
Silicon Abrasive Honing Stones 8X8X100 Hone Steel Tube or Pipe
US$
0.80
1 Piece
(MOQ)
1/4
Luoyang Weixiang Abrasives Co., Ltd.
20 yrs
·
5.0
·
Manufacturer/Factory
Send Inquiry
Cutting High Carbon Steel 125X2.5X22.23mm with Abrasive for Metal Products
US$
0.29
-
0.30
3,000 Pieces
(MOQ)
Factory Price Black Fused Alumina Abrasive 80# 90# for Stainless Steel
US$
750.00
-
800.00
10 Tons
(MOQ)
230*2.0X22.23mm Cut off Wheel Abrasive Cutting Disc for Stainless Steel
US$
0.40
-
0.42
6,000 Pieces
(MOQ)
Premium White Corundum Abrasive for Stainless Steel Sandblasting
US$
870.00
-
890.00
5 Tons
(MOQ)
1/4
Tianqi Abrasives Co., Ltd.
23 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Flat and Depressed Center Reinforced Abrasive for Steel
US$
0.05
-
0.50
3,000 Pieces
(MOQ)
T41 115mm 125mm 150mm 180mm 230mm Flat Center Reinforced Abrasive Steel
US$
0.05
-
0.50
3,000 Pieces
(MOQ)
Steel Grit Steel Shot Cut Wire Shot Abrasives for Blasting
Negotiable
5 Tons
(MOQ)
OEM Customized 115X1.0mm Abrasive Grinding Disc for Stainless Steel
US$
0.04
-
0.35
3,000 Pieces
(MOQ)
1/4
Xiamen Daxing Industry Co., Ltd.
Send Inquiry
High Quality Metal Surface Cleaning Sand Blasting Abrasive Steel Shot S1110
US$
300.00
-
800.00
3 Tons
(MOQ)
High-Density Carbon Metal Abrasives Manufacturers Supply Steel Shot S390 Grit Price Steel Shot
US$
300.00
-
800.00
3 Tons
(MOQ)
Efficient Surface Cleaning Descaling Metal Parts Fine Abrasive Blast Media Zinc Cut Wire Shot Steel Cut Zinc Wire Shot
US$
3,000.00
-
5,000.00
1 Ton
(MOQ)
Coarse to Fine Abrasion Needs Graduated Metal Abrasives Processing Steel Grit and Shot
US$
300.00
-
800.00
3 Tons
(MOQ)
1/4
ZHENGZHOU BOSDI ABRASIVES CO., LTD.
5.0
Send Inquiry
9'' 230mm Grinding Tool, Abrasive Polishing Stainless Steel
US$
0.178
-
0.203
500 pc
(MOQ)
230X3X22mm Cutting Stainless Steel, Abrasive 9inch Resin Cut off Metal, Marble
US$
0.527
-
0.602
10,000 pc
(MOQ)
Cutting Disc, Resin Cutting Hand Tool, Abrasive Cutting Metal, Stainless Steel
US$
0.294
-
0.377
1,000 Pieces
(MOQ)
6'' Cutting Disc, 150X1.6X22mm Cutting Power Tool, Abrasive Stainless Steel Cutting
US$
0.128
-
0.165
10,000 pc
(MOQ)
1/4
LUOYANG FRERE IMPORT AND EXPORT TRADING CO., LTD.
Send Inquiry
Quality Steel Abrasives Featuring Hard-Wearing Steel for Industrial Strength
US$
690.00
-
730.00
10 Tons
(MOQ)
Rust Removal Steel Grit Abrasive
US$
690.00
-
730.00
10 Tons
(MOQ)
Long-Lasting Abrasives with Premium Steel Grit for Strong Performance
US$
690.00
-
730.00
10 Tons
(MOQ)
High Hardness Steel Shot Abrasive Material
US$
600.00
-
680.00
10 Tons
(MOQ)
1/4
Xiamen Furuisheng Abrasive Materials Co., Ltd.
24 yrs
·
Trading Company
Send Inquiry
Tj538 Jwt Flexible Cloth Aluminium Oxide Abrasive Cloth Roll for Polishing Stainless Steel
US$
0.014
-
0.02
10 Pieces
(MOQ)
Ultra-Strong Heavy-Duty Zirconium_Zirconia Abrasive Sanding Beltdzy72 for Alloy Steel
US$
0.014
-
0.02
10 Pieces
(MOQ)
Sandpaper Belt Tj113 P600 Jb5 Jwt Red Aluminum Oxide 1400mmx50m Sanding Cloth Abrasive Cloth Roll for Hand Use
US$
2.00
1,000 Pieces
(MOQ)
Aluminum Oxide Abrasive Emery Cloth Sheet Metalox Jb-5 (TJ113) 230mmx280mm (9''x11'')
US$
2.00
70 Square Meters
(MOQ)
1/4
Zhengzhou Shanjie District Qianjiaxin New Material Firm
2 yrs
·
Trading Company
Send Inquiry
Garnet Sandblast Abrasives Non-Metallic Powder for Stainless Steel Carbon Steel Aluminum Galvanized Surfaces
US$
120.00
-
180.00
1 Ton
(MOQ)
Natural Red Garnet Grit 30/60/80/120 Mesh Sandblasting Grade for Stone/Shot Blasting Steel Cutting Abrasives Use
US$
120.00
-
180.00
1 Ton
(MOQ)
Black Steel Jade Floor Abrasives Bright Black Sand Blasting Rust Removal Emery
US$
316.00
-
521.00
10 Tons
(MOQ)
80 Mesh Stainless Steel Sandblasted Abrasive White Corundum
US$
680.00
-
815.00
1 Ton
(MOQ)
1/3
Huzhou Norden Machinery Co., Ltd.
3 yrs
·
Trading Company
Send Inquiry
High Performance Abrasive for Metal Surface Treatment and Grinding Stainless Steel Tumbling Media
US$
3.50
25 kg
(MOQ)
High Quality Square Cutlery Fork and Spoon Deburred Resin Abrasives Plastic Tumbling Grinding Accessories
US$
1.50
-
2.00
1,000 kg
(MOQ)
Good Quality Stainless Steel Blades Brass Bronze Blades Grinding Abrasives Stainless Steel Polishing Media
US$
3.50
25 kg
(MOQ)
Good Quality Stainless Steel Titanium Watch Case Deburring Abrasives Plastic Tumbling Polishing Media Abrasives
US$
1.50
-
2.00
1,000 kg
(MOQ)
1/4
Henan Shenli Abrasives Co., Ltd.
12 yrs
·
5.0
·
Manufacturer/Factory
Send Inquiry
Senlee Hot Sale Ultrathin 107 mm 4 Inch T41metal Steel Cutt off Cutting Disc Abrasives in China
US$
0.05
-
0.07
10,000 Pieces
(MOQ)
Chinese Single Mesh 107*1.2*16mm 4inch Metal Steel Iron Cutt off Cutting Disc Abrasives
US$
0.05
-
0.07
10,000 Pieces
(MOQ)
Factory Price Single Net107*1.2*16mm Metal Steel Iron Cutt off Cutting Disc Abrasives in China
US$
0.05
-
0.07
10,000 Pieces
(MOQ)
Factory Price Single Net 4 Inch107*1.2*16mm Cutt off Cutting Disc Abrasives for Iron
US$
0.05
-
0.07
10,000 Pieces
(MOQ)
1/4
Tianjin Eastmate Carbon Co., Ltd.
5 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
98% Sic as Deoxidizer for Steel Making Abrasives Sic
US$
500.00
-
600.00
10 Tons
(MOQ)
98% Sic as Deoxidizer for Steel Making Abrasives Sic
US$
500.00
-
600.00
10 Tons
(MOQ)
Hengqiao Manufacturer Silicon Carbide Sic98% for Steel Making and Grinding
US$
600.00
-
1,200.00
20 Tons
(MOQ)
China High Purity Sic90% Size 0-50mm 0-10mm 1-10mm Black Silicon Carbide Used for Steel Making and Foundry Factory
US$
600.00
-
1,200.00
20 Tons
(MOQ)
1/4
Tengzhou Huacheng Metal Product Co., Ltd
26 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Cast Steel Grit Blasting Abrasive Metal Abrasive
US$
0.51
5,000 kg
(MOQ)
Sandblasting Granules Abrasive G80 for Sand Blasting Derusting
US$
0.55
5,000 kg
(MOQ)
Sandblasting Granules Abrasive G40 for Sand Blasting Derusting
US$
0.55
5,000 kg
(MOQ)
Sandblasting Granules Abrasive G120 for Sand Blasting Derusting
US$
0.55
5,000 kg
(MOQ)
1/4
Shandong Sanzhao Supply Chain Co., Ltd.
Send Inquiry
4.5" 115mm Metal Cutting Disc Abrasives Stainless Steel/Iron Wholesale Price
US$
0.09
-
0.11
10,000 Pieces
(MOQ)
107X1.2X16mm Green Cutting Disc Steel Cutting Disc China Abrasives Distributor
US$
0.06
-
0.07
10,000 Pieces
(MOQ)
Industrial Grade Fiber Sanding Disc Abrasive Tools for Grinding, Polishing and Cleaning Stainless Steel and Metal Surfaces
US$
0.05
-
0.06
1,000 Pieces
(MOQ)
115*22mm 4.5"*5/8" Paint Stripping Wheel Ceramic Abrasive Coated
US$
1.20
-
1.35
1,000 piece
(MOQ)
1/4
Liaocheng Century Dongrun New Materials Co., Ltd.
5 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Hard Black Emery Blasting Steel Grit Grain Gray Diamond Sand Sic Silicon Carbide Abrasives for Aquarium Landscaping Water Filter
US$
800.00
-
999.00
1 Ton
(MOQ)
80mesh Blasting White Aluminum Oxide Sand Blasting Grit Abrasive Manufacturer
US$
650.00
-
680.00
5 Tons
(MOQ)
Factory Direct Sale White Corundum Fused Aluminum Abrasive F36 54 60
US$
650.00
-
680.00
5 Tons
(MOQ)
White Fused Alumina Oxide Abrasive Sandblasting
US$
650.00
-
680.00
5 Tons
(MOQ)
1/4
Nantong Lili Hardware Products Co., Ltd.
8 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
China Stainless Steel Shot Beikaxi 0.30-3.17mm Abrasive Manufacturer
US$
100.00
-
1,000.00
1 Ton
(MOQ)
Stainless Abrasives, Steel Shot and Grit, Conditioned Cut Wire Pellets, Cylindrical Wire Pellets, Cut Wire Shot, Abrasives
US$
100.00
-
2,000.00
1 Ton
(MOQ)
Stainless Cut Wire Shot /High Carbon Steel Wire Shot /Shot Peening /Abrasive
US$
2,000.00
1 Ton
(MOQ)
Steel Abrasive with Model No.: 0.80-2.50mm, Nantong Lili, ISO9001, ISO14001, SGS
US$
1,000.00
1 Ton
(MOQ)
1/4
Shanghai Ostar Tools Int'l Co., Ltd.
Send Inquiry
4.5 Inch Super Thin Flat Abrasive for Cutting Stainless Steel with High-Efficient
US$
0.45
-
1.50
2,000 Pieces
(MOQ)
Premium Flat Abrasive Cutting Disc for Stainless Steel Projects
US$
0.45
-
1.50
2,000 Pieces
(MOQ)
High-Performance Flat Abrasive Cutting Wheel for Steel and Inox
US$
0.45
-
1.50
2,000 Pieces
(MOQ)
Durable Dcw Type Abrasive Wheels for Steel and Metal Cutting
US$
0.45
-
1.50
2,000 Pieces
(MOQ)
1/4
Qingdao Sennight International Trading Co., Ltd.
Send Inquiry
Aluminum Oxide Abrasive for Grinding and Sharpening Quenched Steel
US$
10.00
-
12.00
1,000 PCS
(MOQ)
White Aluminum Oxide Abrasive for Grinding High Carbon Steel
US$
5.50
-
6.00
1,000 PCS
(MOQ)
White Aluminum Oxide Abrasive for Grinding and Sharpening Quenched Steel
US$
5.50
-
6.00
1,000 PCS
(MOQ)
Factory Price Grinding Wheels Sand Paper Disc Calcined Aluminum Oxide Flap Disc Abrasives Used to Stainless Steels
US$
5.00
-
7.00
1,000 PCS
(MOQ)
1/4
Henan Yumo New Materials Co., Ltd.
8 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Green Silicon Carbide Abrasive for Hardened Steel Processing
US$
0.20
-
0.80
1,000 kg
(MOQ)
Cemented Carbide Green Grinding Wheel Grain Grit Sic Silicon Micro Fine Powder Carbide Sand Material Abrasive
US$
580.00
-
880.00
1 Ton
(MOQ)
Titanium Alloy Green Grinding Wheel Grain Grit Sic Silicon Micro Fine Powder Carbide Sand Material Abrasive
US$
580.00
-
880.00
1 Ton
(MOQ)
Diamond Discs Green Sic Micro Powder Shaping Grain Refractory Abrasive Silicon Carbide Abrasive Powder for Polishing/Grinding
US$
580.00
-
880.00
1 Ton
(MOQ)
1/4
LINYI ZHAOQING IMPORT & EXPORT CO., LTD
Send Inquiry
Stainless Steel Wire Dish Washing Cleaning Sponge Fabric Abrasives for Kitchen Cleaning
US$
0.03
-
0.05
1 Piece
(MOQ)
Durable Sponge Scourer Pads Abrasives
US$
0.03
-
0.05
1 Piece
(MOQ)
Sponge Scourer Pads Abrasives for Kitchen Pots Cleaning
US$
0.03
-
0.05
1 Piece
(MOQ)
Foamstar Kitchen Scrubbing Sponges Abrasive Non-Scratch Sponge Scouring Pads
US$
2,700.00
-
2,900.00
1 Ton
(MOQ)
1/4
Zibo Aotai New Material Technology Co., Ltd.
9 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
High Purity Alumina Powder Uesd as Abrasives for Stainless Steel Products
US$
460.00
-
1,500.00
1 Ton
(MOQ)
White Alumina Oxide for Stainless Steel Tableware Polishing
US$
460.00
-
1,500.00
1 Ton
(MOQ)
White Al2O3 Alumina Oxide for Stainless Steel Tableware Polishing
US$
460.00
-
1,500.00
1 Ton
(MOQ)
High Purity 99.6% Calcined Alumina Powder for Stainless Steel Tableware Polishing Materials
US$
460.00
-
1,500.00
1 Ton
(MOQ)
1/4
1
150
Hot Products
China Abrasive
Steel Tubing
Steel Ball Valve
Welded Steel Tube
Wheel Abrasive
Diamond Abrasive
Circle Steel
Carbon Steel Ball Valve
Related Manufacturers & Supplier
Stainless Steel Anchor Factories
Stainless Steel Abrasive Factories
Stainless Steel Radiator Factories
Tubeless Steel Wheels Factories
All Steel Radial Tyre Manufacturers
Cast Steel Shot Abrasive Manufacturers
Steel Wire Abrasive Brushes Manufacturers
Coated Abrasive Manufacturers