Ключевые слова: background, blade, circle, circular, construction, detail, diamond, disc, disk, drill, electric, engineering, equipment, factory, flash, grind, grinder, hole, hollow, industrial, industry, iron, light, machine, manual, manufacture, manufacturing, mechanic, metal, part, polish, production, protection, rotate, round, safety, smooth, spark, speed, spin, steel, technology, tool, treatment, turning, welding, wheel, work, worker, workshop,