Ключевые слова: anticorrosion, coated, construction, distribution, duct, engineering, equipment, external, extrude, factory, fusion, gas, hardware, heating, industrial, industry, inside, iron, layer, manufacture, manufacturing, metal, metalworks, oil, petroleum, pipe, pipeline, pipeline installation, plastic, plumbing, polyethylene, polymer, polypropylene, premium, pressure, production, red, round, seam, steel, storage, supply, technology, transport, transportation, tube, tunnel, warehouse, water, work,