Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering Copper Alloy ASTM B111 C70600 Seamless Pipes/Tubes Bfe10-1-1 for Seawater System, ASTM A519 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing, ASTM B167 Uns N06600 Nickel Alloy Seamless Steel Pipes/Tubes Corrosion Resistant and so on.