Ladder lift truck, also called high-altitude transportation truck, is mainly used for engineering leasing, waterproof materials upstairs, moving companies, cement and gravel handling, building materials upstairs, construction waste handling, ship maintenance, road and bridge repair, etc. The operating range can reach 28 meters, 38 meters, 45 meters, the vertical height is equivalent to 10 to 15 floors, and the maximum weight of the cargo is 400 kg.