Ключевые слова:
Pipework systems, Pipes, Unplasticized polyvinyl chloride, Polyvinyl chloride, Water supply and waste systems (buildings), Waste-water drainage, Drainage, Plastics, Pipe fittings, Dimensions, Size, Diameter, Length, Thickness, Spigot-and-socket joints, Sealing rings, Mechanical properties of materials, Impact strength, Physical properties of materials, Performance, Marking, Recycling