Ключевые слова: adult, aluminium, aluminum, background, business, caucasian, construction, factory, frame, happy, hindu, india, indoors, industrial, industry, international, job, machine part, machinery, making, man, manual, manufacture, manufacturing, men, metal, occupation, one, people, person, plant, plastic, polymer, portrait, professional, protective, pvc, skill, smiling, steel, technology, tool, uniform, window, windows, work, work wear, worker, workplace, workshop,