28 Nov NF – Vitrified clay pipes (NF121) – MARQUE NF Posted at 13:54h in Sewerage & paving material by admin Caractéristiques : In accordance with NF EN 295-1, NF EN 295-2, NF EN 295-3, NF EN 295-4, NF EN 295-5, NF EN 295-6, NF EN 295-7: Crush resistance Watertightness of product Watertightness of joints Dimensions Organisme certificateur : CSTB||| Be certified See certified