Ключевые слова: blade, circle, circular, construction, cut, diamond, disc, disk, electric, engineering, equipment, factory, fire, flash, grind, grinder, hand, industrial, industry, iron, job, light, machine, manual, manufacture, manufacturing, mechanic, metal, part, power, production, protection, repair, rotate, round, safety, saw, spark, speed, spin, spray, steel, technical, technology, tool, treatment, wheel, work, worker, workshop,