Stainless Steel Flange, Pipe Fittings, Valve manufacturer / supplier in China, offering Mss Sp-44 Nps 36" Class 600 HVAC F60 Necked Flat Welding Flange, Mss Sp-44 Nps 26" Class 300 Potable Water & Drainage F52 Slip on Flange, Mss Sp-44 Nps 26~60" Class 150 Water Treatment ASTM A694 So Flange and so on.