Electric trolley,Motorized Trolley Capacity form 0.5t to 5t. Single Phase and Three Phase are available. Electric trolley,Motorized trolley,trolley.HHBD type electric trolley.* Capacity form 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, Motorized Trolley