吊具上臂的连接孔穿有连接卸扣，连接卸扣连接主钢丝绳吊系；
The connecting hole on the upper arm of the hoist is penetrated by a connecting shackle connected with a main steel cable hanging rope.
吊具上臂的连接孔穿有连接卸扣，连接卸扣连接主钢丝绳吊系；
The connecting hole on the upper arm of the hoist is penetrated by a connecting shackle connected with a main steel cable hanging rope.
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