Ключевые слова: construction, craftsman, engineering, equipment, fabrication, factory, flash, gas, horizontal, hot, industrial, industry, iron, keywords blue, labor, laborer, light, man, manual, manufacture, manufacturing, mask, metal, metalwork, occupation, one, orange, person, protection, safety, skill, skilled, spark, steel, technology, tool, torch, weld, welder, welding, worker, working,