Home / Standards / GB/T 2968-2008 GB/T 2968-2008 Abolished Samarium metal 金属钐 Standard Type GBT ICS 77.120.99 CCS H65 Status 废止 Issue Date 2008-03-31 Implementation 2008-09-01 Responsible Dept 国家发展改革委 Drafting Unit N/A