... hard objects. 3.Such as metal,glass,wood,iron,steel,aluminum. Metal shredder GL61250 DescriptionAutomatic control by microcomputer (PC), with ... pipe, pipe fittings, forklift splint, tyres, packing barrel, vehicle body, aluminum, copper and steel less than 10mm.ModelItemUnitGL61180GL61180AGL61250A(mm)580061386500B(mm ... Speed Reducer, big torque in low speed. Metal Shredder Machine/Heavy Duty Shredder