Ring eye hook should pay attention to environmental conditions when used with the sling and rigging shall not use twist and tie a knot. Hook in the process of lifting, no lifting of goods subjected to collision and impact.
At present, ring eye hook is forged hooks, cast not allowed on the crane hook, ring eye hook widespread adoption of low carbon steel and alloy steel.
Hook up connections of cranes and heavy roles, and maintenance work must take account of it. To this end, hook lifting height limiter or hook locking device malfunction or damage, must not reuse; with regard to undocumented, leadership should be held accountable. In order to ensure security, to test hook, when found to be one of the following situations, and should be scrapped.