Scissor lift is extensive use of high-altitude professional equipment. Its scissor mechanical structure, so that after the elevator lifting high stability, large platform and a higher carrying capacity, so that a greater range of operations at high altitude, and for many people simultaneously. It enables high-altitude operations more efficient, safer and more secure. In order to meet user requirements and customized large load hydraulic scissors lifts, a carrying capacity, lift, good stability, suitable for industrial and mining enterprises in the high-altitude heavy equipment repair and maintenance, installation works and installation of overhead facilities. High-strength manganese steel lift mechanism rectangular tube production to prevent the emergency lowering device lifts overload protection device to prevent hydraulic lines bursting safety device in case of power failure