Ключевые слова: business, caucasian, computer, construction, control, employee, engineer, engineering, equipment, factory, hardhat, helmet, indoors, industrial, industry, job, labor, machine, machinery, maintenance, male, man, manager, manufacture, manufacturing, mechanic, metal, occupation, operator, people, person, plant, production, professional, protective, quality, safety, service, steel, technician, technology, tool, uniform, warehouse, work, worker, workman, workplace, workshop, young,