Traction passengers elevator: the power supply of this kind of elevator is gearbox or gearless engines that are usually installed at the top of the elevator shaft.

Traction passengers elevator: the power supply of this kind of elevator is gearbox or gearless engines that are usually installed at the top of the elevator shaft.

Traction passengers elevator: the power supply of this kind of elevator is gearbox or gearless engines that are usually installed at the top of the elevator shaft.