Profile: Shanghai Heco-Torque Valve Co., Ltd. provides control valves and pneumatic actuators. Our products include pneumatic butterfly valves, ball valves and pneumatic actuator. We serve industries like oil mine, natural gas, petrol chemical, electric power, medical treatment and water disposal. We offer 1-PC screwed end ball valves. Our manual butterfly valves include rubber disc butterfly valve, wafer triple eccentric metal-seat butterfly valve, eccentric flanged butterfly valve and lug butterfly valves.