Ключевые слова: adult, blue, business, construction, craftsman, engineer, engineering, equipment, factory, fixing, happy, heavy, helmet, industrial, industry, iron, job, machine, machinery, maintenance, man, manufacture, manufacturing, mechanic, mechanical, metal, modern, one man, pipe, plant, portrait, professional, protective, safety, service, site, steel, technical, technician, technology, tool, training, uniform, work, worker, workman, workplace, wrench, young,