Operate hoisting and lifting devices such as cranes, jacks and tractors to position machinery and parts during the installation, set-up and repair of machinery.
在安装，设置及维修机器过程中，操作起重设备，如起重机，千斤顶和拖拉机来放置机械或部件。
Set the workshop or shelter to protect the hoisting machine from the sun, rain and humidity.
搭设工作棚或设防护罩，防止卷扬机暴晒，雨淋，积水受潮。
Branch is set, workers, trade, transport hoisting one for the production and operation of enterprises.
公司是集科、工、贸、吊装运输为一体的生产经营企业。
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