Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering GOST 9941-81 Seamless Stainless Steel Pipes for Corrosion-Resistant and Heat-Resistant, ASME B16.11 A105 Threaded Fittings for Low and Medium Pressure Applications, Cu-Ni C71500 Seamless Copper-Nickel Pipe for Industry and so on.