Valve, Ball Valve, Stainless Steel Ball Valve manufacturer / supplier in China, offering 2 Piece Stainless Steel NPT /Bsp/BSPT/ Thread 304/ 316 Ball Valve, 3 Piece Stainless Steel Float Screw Ball Valve NPT 11/4 "Thread, 3PC Female Threaded /SS304 /316 /OEM BSPT 1000wog Oil Valve and so on.