Home / Standards / GB/T 23521-2009 GB/T 23521-2009 Active Silver and copper alloy bar, tube and strip for tantalum capacitors use 钽电容器用银铜合金棒、管、带材 Standard Type GBT ICS 77.120.99 CCS H68 Status 现行 Issue Date 2009-04-08 Implementation 2010-02-01 Responsible Dept 中国有色金属工业协会 Drafting Unit 中国有色金属工业协会