Stainless Steel Flange, Pipe Fittings, Valve manufacturer / supplier in China, offering En 1092-1 20 Inch Welding Nickel Alloy Slip-on Flange, En 1092-1 8 Inch Full Penetration Welds C95400 Necked Flat Welding Flange, API 605 Nps 48" Pressure Testing En 1563 Necked Flat Welding Flange and so on.