Ключевые слова: arc, closeup, construction, duty, equipment, factory, fire, heavy, hot, industrial, industry, iron, ironwork, job, labor, laboring, labourer, light, man, manual, manufacture, manufacturing, mask, men at work, metal, metalwork, protection, protective, repair, safety, skill, skilled, smoke, spark, steel, structure, technical, tool, weld, welder, welding, work, working, workplace,