Ключевые слова: connection, construction, craftsman, dangerous, electrician, electricity, engineering, equipment, fire, flames, flash, glasses, headwear, industrial, industry, job, labor, light, man, manufacturing, mask, metal, occupation, person, post, power, protection, repair, safety, skill, sky, smoke, spark, steel, structure, technical, technology, tool, tower, welder, welding, worker, working,