... , QPPY11, QPKY, QHLY, QHSY, QRWY2) A set of hydraulic hoist includes a hydraulic cylinder, an electric controlsystem including PLC, a ... hydraulic control system and pipelines. They areused to lift and close the conventional plane gates, high-speed conventionalplane gates ... navigationbuildings, ship locks, power stations and bridges3) The hoist cylinder is made of no. 45 steelPacking:Wooden case