Flange, Steel Pipe Flange, Stainless Flange manufacturer / supplier in China, offering Stainless Steel Threaded Pipe Flange DN15 304 Pn6/10/16/25/40, Three Piece Automatic Welding Ba Ball Valve 1/2" 316L Gas, 316L DN40 2PC Stainless Steel Two Piece Threaded Ball Valve and so on.