Ключевые слова: against, aluminium, background, blue, business, cement, chemical, colorful, concrete, construction, container, fabrication, factory, fuel, gas, grey, handrail, industrial, industry, iron, ladder, manufacture, manufacturing, metal, metallic, mix, petrochemical, pipe, place, plant, process, produce, production, protection, red, refinery, shape, silo, silos, silver, sky, stainless, steel, storage, tank, technology, welding, white, work, yellow,