Ключевые слова: abstract, air duct, aluminum, blank, ceiling, clean, color image, contemporary, copy space, corrugated, corrugated iron, day, engineering, exhaust, full frame, gray, indoors, industry, iron, metal, metallic, modern, new, nobody, outdoors, part of, pattern, perspective, photography, pipe, profiled, shiny, silver sparse, stainless steel, steel, striped, sunlight, symmetry, technology, textured, textured effect, tube,