Ключевые слова: abstract, background, blue, business, clean, composition, construction, design, engineering, equipment, factory, form, heavy, industrial, industry, insulated, iron, line, manufacturing, material, metal, metallic, metalwork, new, object, pipe, pipeline, pipes, plant, polished, power, product, production, reflective, round, shine, shiny, smooth, stainless, steel, still life, technology, tube, tubing,