Power: Battery. 63 Ton Heavy Load Steel Tube Handling Flat Bed Cart For Transporting Heavy Cargoes. Material: Q235 or Q345 mild steel. Loading Capacity: 63 ton. Control mode: push button control, wireless remold. Power: Battery. 40 Ton Steel Coils Motorized Transfer Trolley Heavy Duty Motorized Rail Cart. Material: Q235 or Q345 mild steel.