Ключевые слова: arc, assembly, construction, craftsman, dramatic, electric, electrode, engineering, equipment, factory, fire, flame, flash, flying, gas, helmet, highlights, hot, industrial, iron, job, labor, large, light, machine, man, manufacture, mask, metal, metalwork, neon, person, pipe, production, protection, repair, safety, skill, smoke, spark, steel, structure, technical, technology, tool, welder, welding, worker, working, workplace,