3. Drilling concrete, metal, decoration (grinder), cut, the moving of chemical, acid or dangerous substances อื่นท to wear eye and face protection devices, 4 every
. When working in the harmful toxins,Poison gas, or in the air, not pure. To a respirator or air purifier, see the smoke. Or use a fan ventilation
5.Those who get free safety shoes (shoes iron head), everyone will have to wear while at work and in work all the time เขตง
6.? The seat belt must be in good condition and must be used every time when working on high
7.Metal cutting gas must wear gloves and should wear glasses reduce light
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