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GB/T 11069-2017 高純二氧化鍺 High purity germanium dioxide2023-08-27

DIN 2137-1-2018 Keyboards for data and text input - Part 1: German keyboard layout; Text in German and Engl...2023-08-03

GB/T 11070-2017 還原鍺錠 Reduced germanium ingot2023-05-26

DIN EN 14055-2018 WC and urinal flushing cisterns; German version EN 14055:20182023-05-04

DIN EN ISO 683-4-2018 Heat-treatable steels, alloy steels and free-cutting steels - Part 4: Free-cutting st...2023-05-01