Butterfly Valve, Sanitary Valve, Ball Valve manufacturer / supplier in China, offering Leak-Proof St-V1033 Quick-Connect Stainless Steel 3PC Union Ball Valve for Food Processing, Space-Saving St-V1033 Miniature Stainless Steel 3PC Mini Ball Valve for Laboratory Equipment, Precision St-V1033 Raised-Face Stainless Steel 3PC Flanged Ball Valve for Steam Lines and so on.