Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering A106 Gr. B/A53 Gr. B / 5L X52 Seamless Carbon Steel Pipe Sch40 for Oil & Gas Pipeline, A182 F304/F316/F347 Stainless Steel Blind and Slip on Flange for Water Treatment, ASME SA213 T11 En10216-2 38.1X2.1X10110mm Seamless Alloy Steel Tube for Boiler and Heat Exchanger and so on.