配置手动液压装置，可在停电或无电源场所照常进行升降工作。

Configuration manual hydraulic device, can be in power failure or no power supply place as usual lifting.

youdao

配置手动液压装置，可在停电或无电源场所照常进行升降工作。

Configuration manual hydraulic device, can be in power failure or no power supply place as usual lifting.

youdao