Home / Standards / GB/T 39125-2020 GB/T 39125-2020 Active Cerium-magnesium alloys 铈镁合金 Standard Type GBT ICS 77.120.99 CCS H65 Status 现行 Issue Date 2020-10-11 Implementation 2021-09-01 Responsible Dept 国家标准委 Drafting Unit N/A