Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering GB/T14976-2012 TP304 Seamless Stainless Steel Tube for Fluid and Industrial Piping Applications, Professional Seamless Carbon Steel Tube Manufacturer - Direct Factory Pricing & Custom Solutions Available, ASTM A210 Seamless Carbon Steel Tube for Boiler and Heat Exchanger and so on.