Shanghai PLY Automatic Control Equipment Co., Ltd. is a professional company specializing in the research, development, production and sales of Electric valve actuator automatic control system. The electric actuator series produced by our company are small in size, environment-friendly energy saving, large in torque, long in operation life span, suitable for butterfly valves, ball valves of 90 degree rotation, multiple-turning valves and similar devices. The products are widely used in pipeline fluid transport and closure for petrochemical, printing and dyeing, food, electric power, pharmaceutical, metallurgy, water supply system, municipal engineering and other industries.