Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering ASTM/ASME B/Sb163 Uns N06600/Uns N06690 Nickel Alloy Seamless Steel Tube and Pipe, ASTM 304/316L Seamless Stainless Steel Round Tubes for Boiler Applications, JIS G3452 Sgp Seamless Carbon Steel Round Pipes for Shipbuilding and so on.