China tower crane, Potain tower crane, liebherr tower crane
passenger hoist cabin, hoist, tower crane motor, hoist control box, hoist motor, hoist reducer, Resistence box, Contactor,  Transformer, driver control, potentiometer, RCV Slewing block, limited switch, slewing ring, wire rope, cylinder, hydraulic pump, pinion, bevel gear, drive shaft, pulley, baraker disic, fixed magnet, carbon brush, sleeve, nylon sleeve, splined sleeve, seal ring, slewing motor, slewing reducer, electronic control box, planet gear, pulley, trolley drum.