LISJSG2000/20 Construction hoist main characters: Standard knot is bended by the steel plate, the rack is from the first class company in China with large power fall-proof device, low voltage 24V control, more than 7 parts is treated with galvanization and the machine is well tested before delivered. Longie construction hoist has completely safe electric parts, mechanical multi-lock safety device, there are safety switches, upper and beneath limit switches