Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering API 5L X42/X52/X65 ERW Hfw Welded Carbon Steel Pipe for Oil & Gas, ASME SA210/213/335 JIS G3461 Carbon&Alloy Steel Tubes for High Pressure Service, BS4504 DIN Pn16 Plate RF Stainless Steel 304 316L Flange and so on.