... . 1 set / 1 carton, 20 cartons / 1 palletApplications:1) To lift machines, vehicles, equipment and prefabrication parts in mechanical assembly and ... vehicle overhaul, and at construction sites.2) To lift rails in railway maintenance and repairs.3) To support the ... hydraulic jacks whose lowering height and speed is out of control when oil leaking. The top-quality all steel structure makes ...