Ключевые слова: aboveground, business, chemical, conduit, construction, delivery, duct, energy, engineering, environment, equipment, factory, fuel, gas, gasoline, green, heat, hot, hydro, industrial, industry, infrastructure, iron, line, main, metal, oil, petrochemical, petrol, petroleum, pipe, pipeline, pipelines, pipework, piping, plant, plumbing, power, production, refinery, stainless, steam, steel, supply, technology, transmission, transportation, tube, tubing, water,