The ships deck hoistingmachinery such as bow gate, bulkhead valve, stern propeller and so on;
船舶用的甲板起重机械（绞车）、船头门、舱壁阀、船尾推进器等；
2
The hoistingmachinery is one kind of important loader, simultaneously is also the risky very high mechanical device.
起重机械是一种重要的搬运设备，同时也是危险性很高的机械设备。
3
Toyo light and small electric hoist is a kind of hoistingmachinery, it is lifting slowly, the body weight, high hardness, the parts wear small features.