Home / Standards / GB/T 29915-2013 GB/T 29915-2013 Active Lanthanum-magnesium alloy 镧镁合金 Standard Type GBT ICS 77.120.99 CCS H65 Status 现行 Issue Date 2013-09-27 Implementation 2014-08-01 Responsible Dept 国家标准委 Drafting Unit N/A