Ключевые слова: abstract, architecture, background, building, cable, ceiling, colorful, conduit, connect, construction, design, electric, electrical, electricity, engineering, environment, equipment, facility, factory, galvanized, heavy, hvac, industrial, industry, installation, interior, line, metal, metallic, modern, network, pattern, pipe, pipeline, piping, power, protection, red, safety, site, steel, structure, system, technology, texture, tube, tubing, wall, water, wire,