Ключевые слова: arc, assembly, close, closed, connect, construction, craftsman, electric, electrical, engineering, fabricate, factory, fire, flash, foreman, hand, heat, hot, industrial, industry, iron, job, labor, light, man, manufacture, manufacturing, metal, metalwork, protection, repair, safety, site, skill, smoke, spark, steel, stick, technology, tool, up, weld, welded, welder, welding, work, worker, workshop,