boom hoist reeving
... boom crane boom hoist 臂式吊车 Boom hoist reeving 吊杆绕绳 boom hoist cab 俯仰操纵室 ...
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吊杆架可绕自身轴线回转，手摇起重机绳筒上缠绕的钢丝绳通过吊杆架带动吊具。
The suspension can turn winding it's axle line, the wire rope winding on the rope roller drive the suspension tools by the suspension shaft.
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