Ключевые слова:
Plastics, Polymers, Pipework systems, Plastic pipelines, Water, Pipes, Water supply engineering, Water supply (buildings), Unplasticized polyvinyl chloride, Polyvinyl chloride, Pipe fittings, Pipe couplings, Pressure pipes, Valves, Pipe connections, Water supply, Water mains, Potable water, Internal, External, Buildings, Temperature, Cold-water supply systems