Ключевые слова: angle, circular, construction, cut, cutter, danger, disc, disk, electric, engineering, equipment, factory, fist, flame, flash, glove, grind, grinder, grinding, hand, heat, hot, industrial, industry, instrument, iron, job, light, machine, man, manual, manufacture, manufacturing, metal, power, production, protection, rotate, safety, saw, spark, spin, steel, technology, tool, welding, wheel, work, worker, workshop,