1. QD type hook bridge crane, bridge, traveling mechanism, trolley, electric equipment. Depending on the use of different level and load status, divided into the A3, A5, A6, A7 four kinds of working-level. 2. The cab platform entrance side of the direction of the entrance, the end face of the inlet and the top surface of the entrance three. 3. Install the icon at the left end of the cab. 4. The available security carts conductive trolley line can also be used angles, both in the same side of the cab at the opposite side of the cab (pictured). 5. Action to manipulate all of the cranes in the completion of the cab.