Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering ASTM A312 TP304 Seamless/Welded Stainless Steel Pipe for Marine Shipbuilding Industry, DIN 2576 Flat Flange for Welding Slip on Pipe Od ISO/Material A105/A234, ASTM A210m Grade A/C Seamless Carbon Steel Boiler Pipes - Large Od and so on.