Ключевые слова: background, blue, building, business, concept, construction, development, engineer, engineering, equipment, factory, floor, heavy, indoors, industrial, industry, inside, interior, iron, job, labor, laborer, large, light, line, machine, machinery, manufacture, manufacturing, metal, modern, plant, power, production, room, safety, steel, stock, storage, structure, supply, technology, warehouse, work, worker, workplace, workshop,