Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering En 10224 X46 Large Diameter Welded Steel Pipe ID 960mm × 10mm for Water Pipeline and Structural Engineering, ASTM A790 Uns S31803 Duplex Stainless Steel Seamless Pipe 168.3 X 18.2 mm for Oil Gas and Marine Pipeline Applications, Sch40 Seamless Steel Pipe ASTM A53 Gr. B for Industrial Construction Oil & Gas and so on.