ENV hydraulic equipment co., Ltd is the Ministry of water resources, Ministry of construction, Sentinel professional production of hydraulic cylinder factory, water conservancy and hydropower planning and Design Institute and China power complete equipment as one of the hydropower projects of major equipment manufacturers, with the Ministry of water resources issued a production license for large hydraulic hoist. Company has strong technical strength, advanced technology, has nearly 30 years of production of various types of hydraulic cylinders and hydraulic equipment history, mid-90 first to introduce world-class NC machine tool and machining center, and the United States well advanced HTH honing machine. manufacturing of hydraulic cylinder 20M cylinder 1250mm, trips, production capacity of 50000 tonnes. Has been successful for domestic large and medium hydropower stations, the reservoir and ship lock project provides high quality equipment.