1. the tooling protection is not in place. 2. During the operation, the self-made protection of the metal support part of the door installation manipulator is damaged, which will rub against the corner of the door inner guard plate during grabbing and placing, resulting in wear and scratches; 3. Temporarily wrap the part that is too close to the door inner guard with a rag, and wrap and fix it with adhesive tape to avoid contact and rubbing;
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