Electric Actuator, Pneumatic Actuator, Industrial Valves manufacturer / supplier in China, offering Good Pn10 Pn16 Anti-Static Wafer Type Butterfly Valve for Petrichemical Water Wastewater Treatment, Manual Carbon Steel Wcb Ss PTFE Seat Semi-Wafer Butterfly Valve for Industry Processing, Easy Replacement Full Lined PTFE Manual Lug Wafer Type Butterfly Valve with 2-PC Split Body and so on.