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