DIN EN ISO 15876-1-2017 热水和冷水装置用塑料管系统.聚丁烯(PB).第1部分:总则(ISO 15876-1-2017);德文版本EN ISO 15876-1-2017
Plastics piping systems for hot and cold water installations - Polybutene (PB) - Part 1: General (ISO 15876-1:2017); German and English version EN ISO 15876-1:2017