Ключевые слова: background, basin, bathroom, connection, connector, connectors, construction, domestic, drain, drainage, engineering, equipment, fitting, heating, home, industrial, industry, industy, maintenance, materials, parts, pipe, pipeline, piping, plastic, plumber, plumbing, pvc, repair, service, sewage, sewer, sewerage, sink, siphon, supplies, supply, system, technician, tube, water,