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