Ключевые слова: adult, aluminium, background, business, caucasian, construction, design, equipment, factory, frame, hand, happy, indoors, industrial, industry, job, jobs, machinery, males, man, manual, manufacture, manufacturing, metal, occupation, one, people, person, plant, plastic, polymer, portrait, process, production, professional, protective, pvc, skill, smiling, steel, technology, tool, uniform, window, windows, work, work wear, worker, workplace, workshop,