Profile: Beijing IWHR Corporation mainly works on research in related technical fields such as overseas and national water resources & hydropower, communication, energy, railway, municipal engineering, and construction fields. Hydraulic elevator dam researched and developed in water conservancy science and technology. It is the optimized combination of hydraulic three-hinge-point luffing mechanism principle and traditional sluice. Hydraulic cylinders support at the back of the panel to lift up the gate for blocking water or to drop down the gate in the case of flood discharging. It is applicable to various hydrological and geological conditions; it is widely used in river landscape, storage of irrigation water, expansion of reservoir capacity and other water conservancy hydropower, water ecological civilization and urbanization construction projects.