Black pipe couplings are forged from high-quality black carbon steel pipes sandblasted or coated to enhance corrosion resistance. Hebei Sanvo is a quality carbon steel coupling manufacturer and supplier in China and exports and customizes black steel merchant couplings and API line pipe couplings, etc. The specifications include full coupling, half coupling, extra heavy full coupling, extra heavy half coupling, etc.

Black Steel Full Merchant Coupling

China Carbon Steel Coupling Manufacturer Steel Merchant Coupling Black Steel Full Mercha...

Black Threaded Half Merchant Coupling

China Pipe Coupling Manufacturers Carbon Steel Merchant Coupling Black Threaded Half Mer...

1 Inch Black Extra Heavy Full Merchant Coupling

China Pipe Coupling Manufacturers 1 Inch Steel Merchant Coupling Black Extra Heavy Full ...

NPT Black Extra Heavy Half Merchant Coupling

China Pipe Coupling Manufacturers Carbon Steel Merchant Coupling NPT Black Extra Heavy H...

API Line Black Steel Pipe Coupling

China Pipe Coupling Manufacturers Carbon Steel Threaded Coupling API Line Black Steel Pi...


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