Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering ANSI B16.5 Duplex 2205 Flanges for Chemical Plants En 1092-1 Pn16 Acid-Resistant, ASTM A179 / A192 Seamless Carbon Steel Tube for Heat Exchangers and HVAC Systems in Chemical and Pharmaceutical Industry, API 5L Grade B ERW Carbon Steel Tube for Oil and Gas Pipeline / Structural Applications and so on.