Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering 304/304L, 316/316L, 321, 347, Duplex2205, Super Austenitic (904L, 254SMO) Stainless Steel Pipe, ASTM A554 904L 254smo Cold Drawing Stainless Steel Pipe for HVAC/Architecture PMI, 316 316L Ss Boiler Cleaning Tube with Bright Annealing and so on.