air hoist,small in size, light in weight and easy to operate.work in high temperature, in extremely dusty atmospheric condition 1. ... pneumatic tool, Beijing Shuangtai air hoists are small in size, light in weight and easy to operate. 6. Our air ... service time, environment-friendly, energy-saving, low-cost in operating.SpecificationsmodelcapacitytLifting speed m/minLowering speed m/minOperating speed m ...