Seamless Steel Pipe, Flange, Valve manufacturer / supplier in China, offering Carbon Steel ASME B16.5 So-RF Flange Cl150 2" Sch 40 A105 Slip on Flange, Stainless Steel Flange Certified by ISO9001 Quality Resistant Slip on Flange, Alloy Steel Pressure Resistant Seamless Hygienic Precision Made Pipe Head and so on.