Ключевые слова: architecture, background, blue, box, building, cable, ceiling, concrete, conduit, construction, design, distribution, electric, electrical, electricity, engineering, equipment, factory, grey, industrial, installation, interior, junction, line, metal, modern, nuts, pattern, pipe, pipeline, pipes, power, red, safety, screws, site, steel, structure, system, technology, texture, tube, wall, wires, wiring, yellow,