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