DIN EN ISO 11177 : 2016现行
VITREOUS AND PORCELAIN ENAMELS - INSIDE AND OUTSIDE ENAMELLED VALVES AND PRESSURE PIPE FITTINGS FOR UNTREATED AND POTABLE WATER SUPPLY - QUALITY REQUIREMENTS AND TESTING (ISO 11177:2016)
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
EN ISO 11177 : 2016 - Identical
EN ISO 11177 : 2019 - Identical
ISO 11177 : 2016 - Identical
EN ISO 11177 : 2016 - Identical
EN ISO 11177 : 2019 - Identical
ISO 11177 : 2016 - Identical
