Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering En10216-2 P235gh Tc2 Seamless Carbon Steel Tube for Boiler and Heat Exchanger Applications, P235gh En10216 Seamless Steel Pipe for Boiler Systems and Pressure Equipment, Ap I 5L Grade B / ASTM A252 Grade 3 Welded Carbon Steel Pipe for Piling and Foundation Works and so on.