Ключевые слова: angle, blade, circular, construction, cut, disc, disk, electric, engineering, equipment, factory, flame, flash, grind, grinder, grinding, hand, heat, hot, human, industrial, industry, iron, job, light, machine, man, manual, manufacture, manufacturing, mechanic, metal, person, power, production, protection, safety, saw, spark, speed, steel, technical, technology, tool, welder, welding, wheel, work, worker, workshop,