Ключевые слова: blue, caucasian, control, drilling, engineer, engineering, equipment, factory, grip, hard hat, heavy, helmet, industrial, industry, job, labor, lathe, light, machine, machinery, maintenance, male, man, manufacture, manufacturing, mechanic, mechanical, mechanism, metal, occupation, operating, process, production, professional, protective, repair, safety, service, shave, steel, team, teamwork, technical, technician, tool, turning, uniform, white, work, worker,