Ключевые слова: abstract, arrangement, background, circle, color image, construction, cylinder, detail, drain, drainage, equipment, factory, floor, group, home, horizontal, housing, improve, industrial, industry, maintenance, manufacturing, many, material, new, pattern, pipe, pipeline, piping, plastic, plumber, plumbing, pvc, repair, replace, room, round, service, sewage, stack, storage, store, supply, textured, tube, tubing, warehouse, water, work,