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Scrapping standards for lifting tongs and hooks

by Jinge on 2023-03-08

　　When one of the following conditions occurs in the lifting tongs hook, it should be scrapped:

　　(1) Cracks and cracks appear on the surface of the hook;

　　(2) The wear or corrosion of the dangerous section reaches 10% of the original size;

　　(3) The opening is increased by 15% compared with the original size;

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