The shell is made of steel, which is firm and has strong compression resistance. The heat dissipation adopts 8 blades, which has strong heat dissipation and prolongs the service time. The automatic brake greatly improves the working efficiency. The gear and gear shaft in the gearbox are forged with steel, which is strong and durable, comfortable handle, simple and convenient operation Lifting weight: 50kg, 100kg, 200kg, 400kg, 500kg, 800kg, 1000kg(or OEM) The total width: 12m, 20m, 30m, 60m (or OEM) just tell me your needs, and contact us.