Ключевые слова: blue light, bright, burn, construction, electrical, engineering, engineers, equipment, factory, fire, flash, hot, industrial, industry, iron, job, light, man, manufacturing, mask, metal, metallic, production, production line, protection, repair, safety, skill, skilled, slow shutter, smoke, spark, sparks, steel, teal, technology, titanium, trained, wear, weld, welded, welder, welding, work, worker, workplace, workshop,