Ключевые слова: blue, circle, circular, construction, cut, diamond, disc, disk, drill, electric, engineering, equipment, factory, grind, hand, industrial, industry, iron, light, machine, male person, man, manual, manufacture, manufacturing, mechanic, metal, part, power, production, protection, rotate, round, safety, spark, speed, spin, steel, technical, technology, tool, turning, wheel, work, worker, workshop,