Ключевые слова: angle, builder, building, circular, cleaning, construction, contractor, cut, danger, design, diamond, disc, electric, engineer, engineering, equipment, foreman, grinder, grinders, grinding, handyman, hardhat, industrial, industry, iron, machine, male, man, manual, manufacturing, metal, nozzle, occupation, paint, power, protection, protective, renovation, safety, saw, site, sparks, steel, technology, tool, wall, wheel, work, worker, workshop,