Stainless Steel Flange, Pipe Fittings, Valve manufacturer / supplier in China, offering High Quality ANSI B16.5 DN40 304L Stainless Steel RF So Flange, DIN4533 DN65 Premium Copper Alloy Stainless Steel Non-Corrosive Fluid So Flange, Premium En 1092-1 DN25 Pn16 304L Stainless Steel Slip-on Flanges and so on.