Ключевые слова: blade, circle, circular, construction, cut, die, disc, disk, drill, electric, engineering, equipment, factory, flash, grind, grinder, hand, hold, industrial, iron, light, machine, man, manual, manufacture, manufacturing, mechanic, metal, part, pipe, power, production, protection, rotate, round, safety, saw, spark, speed, spin, steel, technical, technology, tool, treatment, turning, welding, wheel, work, worker,