Ключевые слова: assembly, craftsman, engineering, equipment, fabricate, fabrication, factory, fire, flash, gas, grind, hand, heat, hot, industrial, industry, iron, job, labor, light, machine, man, manual, manufacture, manufacturing, mask, metal, protection, repair, safety, skill, skilled, smoke, spark, steel, structure, team, technical, technology, together, tool, trained, wear, weld, welder, welding, work, worker, workplace,