1. To carry the articles within the specified weight and thickness and range 2. Before handling, make sure that the center of the black bear claw is located at the center of the article, and ensure that the two sides of the black bear claw are in full contact with the two surfaces of the moving object 3. The surface of the moving object must be free of oil pollution and dust 4.Balance the lifting when moving an object 5. When moving objects with black bear claws, you will take additional risk if you climb stairs or ladders, or use black bear claws as a rope orchain
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