1. The lifting hook should be produced and manufactured by a formal manufacturer in accordance with the technical conditions and safety specifications for lifting hooks. The product should have a quality certificate from the manufacturer; otherwise, it is not allowed to be used.

　　2. The new hook should undergo a load test, and the measured opening of the hook mouth should not exceed 0.25% of the original opening.

　　3. During use, the lifting hook should be regularly inspected for cracks, severe deformation, corrosion, and wear

　　4. The lifting hook should undergo a test once a year. During the test, a static test lasting for 10 minutes should be conducted at 1.25 times the allowable working load. It should be inspected with a magnifying glass or other methods to ensure that there are no cracks, fissures, or residual deformations.

　　5. Clean the three dangerous sections with kerosene and use a magnifying glass to inspect for cracks. For plate-type hooks, check the wear condition of the bushing and pin.

　　6. Defects on the lifting hook shall not be repaired by welding.