Ключевые слова: circle, construction, craftsman, cut, cutting, disc, discs, electric, engineering, equipment, fabrication, factory, fire, grinder, hand, hard, industrial, industry, iron, job, light, machine, man, manufacture, manufacturing, mechanic, metal, power, production, protection, safety, saw, sawing, spark, sparks, steel, structure, technical, tool, welder, welding, wheel, work, worker, working, workplace, workshop,