Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering ASTM A312/En 10216-5/JIS G3459 Seamless Stainless Steel Pipe 304/316/L Od1/2"-32" for Petrochemical, Nickel Alloy Stainless ASTM Asmetubing Stainless Steel U-Bend Type Seamless Tubes 12.7X1.24mm, Heat Radiator H U L Type Boiler Fin Tube for Heat Exchanger and so on.