Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering Super Duplex 2507 (UNS S32750) Seamless Pipe ASTM A790 Sch40/Sch80 Offshore&Chemical Processing, ASTM A210/210m Gr. A/C Od Wt Customized Finned Tube Seamless Boiler Pipe, ASTM B111 C44500 C44300 Brass Straight Copper Round Pipe and so on.