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1. The torsional deformation of the electric hoist lifting accessories hook, that is, the torsion angle of the hook body shall not exceed 10 degrees;

2. The surface of the hook should be smooth and clean, without defects such as cracks, sharp angles, burrs, and peeling;

3. Welding repair is not allowed for defects on the hooks of electric hoist lifting accessories;

4. There must be no defects such as cracks, white spots, inclusions that affect its safe use, etc. inside the hook;

5. The dangerous section or the handle of the hook must not be plastically deformed; the thread of the hook must not be corroded.

6. The opening of the electric hoist hook should comply with the provisions of 5.2 in GB10051.

1. The torsional deformation of the electric hoist lifting accessories hook, that is, the torsion angle of the hook body shall not exceed 10 degrees;

2. The surface of the hook should be smooth and clean, without defects such as cracks, sharp angles, burrs, and peeling;

3. Welding repair is not allowed for defects on the hooks of electric hoist lifting accessories;

4. There must be no defects such as cracks, white spots, inclusions that affect its safe use, etc. inside the hook;

5. The dangerous section or the handle of the hook must not be plastically deformed; the thread of the hook must not be corroded.

6. The opening of the electric hoist hook should comply with the provisions of 5.2 in GB10051.