5.5. - Plastic pipes and shaped pieces for potable water distribution lines
5.6. - Closing and non-return valves
5.7. - Relief, control and pressure-reducing valves
5.8. - Slide valves
5.9. - Dampers
5.10. - Hydrants
5.11. - Other pipes for water management sector
5.12. - Devices for welding plastics
8.9. - Other control and regulation systems