PVC Pipe, Diaphragm Valve, Butterfly Valve manufacturer / supplier in China, offering FRPP Worm Gear Butterfly Valve/PP Butterfly Valve (D371X-6S), Socket Ball Valve (Q61F-6S) , Double Union Ball Valve/ANSI/JIS/DIN/GB, Reducing Tee, Plastic Reducing Tee, PVC and so on.