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HAND (han) control valve is specialized in researching, developing and manufacturing HDV series electric \ tiny electric ball valves, pneumatic control valve, electric actuator (actuators), control valve, hydraulic valve, free-standing valve, ceramic valve, titanium, regulator, etc. Company established a perfect quality assurance system, passed ISO9000 international quality system certification, product by JB / 2005 T82191999 "industrial process measurement and control system with electric actuators, certification and testing work. In the company's r&d team effort and the improvement of the quality system, guarantee the products from the design, purchasing raw materials, manufacturing, testing, factory to the service user's each link of quality control. Company with a number of scientific research institution cooperation, and constantly optimized by the company's research and development team. Make the handler, control valve of the brand, quality reach the international advanced level.