Ключевые слова: background, blue, build, building, cement, concrete, connections, construction, coupling, drain, drainage, equipment, factory, fitting, fix, home, house, industrial, industry, infrastructure, installation, irrigation, joints, line, material, municipal, new, object, pattern, pipe, pipeline, pipes, piping, plastic, plumbing, pvc, repair, residential, round, service, sewer, site, steel, supply, system, tube, valve, water, white, work,