Ключевые слова: abstract, background, building, bundle, cable, closeup, communication, conduit, connection, construction, corrugated, curve, data, drain, drainage, duct, ducting, electric, electrical, equipment, fiber, flexible, hose, industrial, industry, infrastructure, installation, insulation, isolated, line, optic, optical, pattern, pipe, pipeline, plastic, plumbing, pvc, road, roll, round, shape, supply, technology, texture, tube, tubing, water, white, work,