Ключевые слова: background, branch, brass, collection, connection, connector, construction, cooper, copper, coupling, detail, drain, drainage, element, engineering, equipment, fitting, fittings, fix, flange, flanged, flow, hardware, old, part, pipe, pipeline, piping, plastic, plumber, plumbing, polypropylene, ppr, pvc, repair, rough, rust, sanitary, stainless, steel, supply, system, tee, threaded, tube, valve, water, white, work,