Ключевые слова: abstract, background, building, canalization, conduit, construction, corroded, corrosion, cylinder, diameter, drainage, duct, heap, industrial, industry, iron, large, manufacturing, many, metal, pipe, pipework, piping, red, reddish, rust, rusty, sewage, sewer, soil pipe, stack, steel, stock, stockyard, store, tube, tubing, warehouse, water,