Maintenance and repair of hoisting device.
启闭设备养护修理。
Guide rope hoisting device is an accessory.
导绳器是起重配件的一种。
The height for mounting-dismounting workpiece is lower, so a hoisting device not need.
工件装卸高度低，不需吊装设备。
The height for mounting-dismounting workpiece is lower, so a hoisting device not need.
工件装卸高度低，不需吊装设备。
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