Ключевые слова: abstract, action, arc, bright, closeup, construction, energy, engineering, equipment, expertise, factory, fire, flame, flash, heat, hot, industrial, industry, iron, job, light, machine, man, manual, manufacture, manufacturing, mask, metal, metalwork, occupation, person, power, production, protection, safety, smoke, spark, steel, technology, tool, torch, weld, welder, welding, work, worker, working,