同样适用于链滑轮。
在'顶链'不要求拉紧滑轮由于偏心中轴。
Thee 'Top Chain' requires no tensioner pulley due to the eccentric Bottom Bracket.
将钢骨柱固定在专用胎架上，通过倒链滑移至安装点下方后，采用滑轮组和卷扬机进行提升就位。
Steel column is fixed to special jig, slipping below the installation position by chain block and lifting by pulley block and windlass.
链动滑轮，吊车专用电动滑板，吊车专用手动滑板，悬臂起重机，铁路养路器械。
Chain blocks, crane - use electrical saddles, crane - use manual saddles, jib cranes, railroad maintenance equipment.
链动滑轮，吊车专用电动滑板，吊车专用手动滑板，悬臂起重机，铁路养路器械。
Chain blocks, crane - use electrical saddles, crane - use manual saddles, jib cranes, railroad maintenance equipment.
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