Home / Standards / GB/T 11069-2017 GB/T 11069-2017 Active High purity germanium dioxide 高纯二氧化锗 Standard Type GBT ICS 77.150 CCS H66 Status 现行 Issue Date 2017-10-14 Implementation 2018-05-01 Responsible Dept 国家标准委 Drafting Unit N/A