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Hard hat usage
Before using the helmet, visual inspection should be carried out. Check the helmet cap, cap, top lining, chin strap, rear buckle (or cap buckle) and other components should be intact. The cushion and top lining buffer space is 25~50mm. .
After the helmet is worn, the rear buckle should be screwed into the proper position (or the cap buckle should be adjusted to the proper position), and the chin strap should be locked to prevent the front slanting back or the other causes the machine to slip.
Before using the high-voltage near-electric alarm helmet, check whether the sound part is good, but it should not be used as the basis for no electricity.
