Ключевые слова: arc, blue, construction, craftsman, engineering, factory, fire, flame, heat, helmet, hot, industrial, industry, iron, job, labor, laborer, light, machine, man, manual, manufacture, manufacturing, mask, metal, occupation, protection, repair, safety, skill, skilled, smoke, spark, steel, tech, technical, technology, tool, torch, trained, weld, welded, welding, work, worker, workforce, workplace,