Rubber ring of round section with a notch for elastic joints in concrete pipe with simple or armed, PVC, fiberglass and cast iron with socket and spigot type

摘要

"Rubber ring of round section with a notch for elastic joints in concrete pipe with simple or armed, PVC, fiberglass and cast iron with socket and spigot type.The present invention which, in only one element combines the functions to facilitate the assembly of the joint pipes with socket and spigot type provides a better tightness.