Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering ASME B16.5 Wp316L Slip-on Flange Class 150 Acid-Resistant Chemical Processing Piping, ASTM B111 C71500 CuNi 70/30 Finned Tubes for Cooling Water Condenser Boiler Tubes, GB/T 17791 C68700 Aluminum Brass Tubes Evaporator Coils and so on.