Home / Standards / GB/T 21651-2008 GB/T 21651-2008 Abolished Secondarily zinc alloy ingots 再生锌合金锭 Standard Type GBT ICS 77.150.60 CCS H69 Status 废止 Issue Date 2008-03-31 Implementation 2008-09-01 Responsible Dept 中国有色金属工业协会 Drafting Unit 中国有色金属工业协会