Ключевые слова: acetylene, blade, circle, circular, construction, cut, cutter, cutting, diamond, disc, disk, electric, engineering, equipment, factory, flash, grind, grinder, hot, industrial, industry, iron, laser, light, machine, manual, manufacture, manufacturing, metal, metalwork, power, production, protection, rotate, safety, saw, spark, sparks, speed, steel, technology, tool, torch, treatment, welding, wheel, work, worker, workers, workshop,