Ключевые слова: air, aluminum, architecture, background, chimney, conditioner, connection, construction, cooling, curve, curved, design, detail, duct, ecology, energy, engineering, equipment, exhaust, exterior, grey, heat, high, house, industrial, industry, infrastructure, metal, metal pipe, metallic, modern, pipe, pipeline, pipes, power, smoke exhaust, stainless, steel, structure, system, technology, temperature, tube, urban, vent, ventilation, ventilation pipes,