ONORM B 5182-1987 Pipes and pipes with spigot ends of unplasticized Polyvinylchloride (PVC-U) for water supply; dimensions, technical terms of delivery, tests and marking of conformity
1987ONORM B 5182-1987 Pipes and pipes with spigot ends of unplasticized Polyvinylchloride (PVC-U) for water supply; dimensions, technical terms of delivery, tests and marking of conformity