Ключевые слова: abstract, background, billets, blue, bright, collage, construction, craft, cut, cutting, equipment, factory, fire, flame, flash, gas, grinder, grinding, heat, hot, industrial, industry, iron, job, labor, light, machine, manual, manufacturing, metal, molten, occupation, plant, power, production, protection, red, repair, spark, sparks, steel, technical, technology, tools, torch, weld, welder, welding, work, worker,