Pipe Fitting, Valve, Ball Valve manufacturer / supplier in China, offering High-Quality Round Female Cast 304/316 Stainless Steel Casting Reducing Socket, High Quality Pipe Fittings 304 316 Plumbing Materials Stainless Steel Threaded Couplings, Stainless Steel 304 201 316 Pipe Fitting Female Thread Cross 4 Way Cross NPT BSPT and so on.