Ключевые слова: adult, aluminum, assembly, automatic, belt, business, color, construction, conveyor, door, doors, equipment, factory, frame, glass, horizontal, indoors, industrial, industry, jobs, line, machine, machinery, males, manual, manufacture, manufacturing, men, metal, modern, occupation, one, people, person, plant, plastic, process, production, profile, protective, pvc, skill, steel, technology, tool, toughness, window, work, worker, workshop,