Electric trolley,Motorized Trolley. Capacity form 0.5t to 5t. Single Phase and Three Phase are available. Electric trolley,Motorized trolleyHHBD type electric trolley...* Capacity from 0.5t to 5t....*Safe, reliable with interlock device.*Gear hardness:HRC32-36 for long life...*Both single phase and three phase are available...*One year guarantee.... Electric Trolley