Ключевые слова: abstract, background, black, blue, bright, brilliant, color, construction, craftsman, cutting, danger, dangerous, dark, electric, engineering, equipment, factory, fire, flame, flash, foundry, grinder, hot, industrial, industry, iron, job, labor, light, line, machine, manufacture, manufacturing, metal, plant, power, production, skill, spark, sparks, steel, technical, technology, tools, torch, weld, welder, welding, work, worker,