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(1) Hook safety device: to prevent thesling on the hook by the automatic safety device on the hook slip. That openinginstall a hook head pressing spring, closing the opening, this spring sheet canonly push down on, put not dug up after people sling to prevent sling offautomatically.
(2) reel safety device: Effective measures beyond the rope due to improperoutside winding reel accident prevention. Its practice varies, mostly shroudedin welding a steel drum, the restrictions can only move within the rope reelrange.
(3) Fixed base: digging the groove depth 600mm, the dust poured concrete, thesurface smooth, waterproof and ground protection measures.
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Post time 18-8-2015 04:16 PM
变色卡
