Ключевые слова: arc, construction, construction industry, craftsman, engineering, equipment, fabricate, fabrication, factory, fire, flash, gas, helmet, hot, industrial, industry, iron, job, labor, laborer, light, man, manual, manufacture, manufacturing, mask, metal, metal industry, production, protection, repair, safety, skill, skilled, smoke, spark, sparks, steel, structure, technical, technology, tool, weld, welder, welding, welding torch, work, worker, workplace, workshop,