Stainless Steel Flange, Pipe Fittings, Valve manufacturer / supplier in China, offering BS 4504 316L Stainless Steel DN 700 CNC Machine Sterilization Pot Flange, JIS F7806 Alloy Steel 2" DN50 Professional Tongue Face Plate Flange, DIN 2631~2638 F304L 6" DN150 Large Diameter Rised Face Slip-on Flange and so on.