23.040.50 Pipes and fittings of other materials

Glass plant, pipeline and fittings - Pipeline and fittings DN 15 to 1000 - Compatibility and interchangeability

Fibre-cement pipes and fittings for discharge systems for buildings - Dimensions and technical terms of delivery

Plastics piping systems for non-pressure drainage and sewerage - Polyester resin concrete (PRC) - Part 1: Pipes and fittings with flexible joints