Ключевые слова: abrasive, angle, blade, circle, circular, construction, craftsman, cut, cutter, disc, disk, electric, engineering, equipment, factory, fire, flash, grind, grinder, hand, industrial, industry, iron, job, laborer, light, machine, manual, manufacture, manufacturing, mechanic, metal, power, protection, rotate, round, safety, saw, sparks, speed, spin, steel, technical, technology, tool, welding, wheel, work, worker, workshop,