Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering Stainless Steel 304 304L 316 316L 904L 254smo 2205 2507 Pre-Fabrication of Pipe Flange Fittings, S304 SS316 S2507 S2205 254smo Austenitic Alloy and Duplex Stainless Steel Seamless Pipe Ss Pipe, S32205 2205 S32750 2507 S31254 254smo Duplex Stainless Steel Seamless Welded Pipe and so on.