Ключевые слова: abstract, background, bundle, cable, canalization, circle, closeup, coil, color, conduit, connection, construction, corrugated, damage, detail, drainage, electric, electrical, electricity, equipment, fitting, flexible, gray, grey, hose, hoses, industrial, industry, installation, insulation, isolated, line, material, network, pipe, pipeline, plastic, power, production, protection, protective, pvc, ring, round, supply, tube, tubing, white, wire, wiring,