Найдено: 3
Overview ISO 4633:2023 - Rubber seals - Joint rings for water supply, drainage and sewerage pipelines - Specification for materials - defines material requirements for vulcanized rubber joint rings u…
1 Scope This document specifies requirements for materials used in vulcanized rubber seals for the following: a) cold drinking-water supplies (up to 50 °C); b) drainage, sewerage, and rainwater syste…