Safety Valve, Ball Valve, Control Valve manufacturer / supplier in China, offering Nr/NBR/EPDM Rubber Lined Normally Open/Closed Manual/Weir Type Diaphragm Valve, BS Manual Diaphragm Valve (GAG41J), FEP/PTFE/F4/PFA Lined Pneumatic Normally Closed Weir Type Diaphragm Valve and so on.