Home / Standards / GB/T 29094-2012 GB/T 29094-2012 Active Temper designations for copper and copper alloys 铜及铜合金状态表示方法 Standard Type GBT ICS 77.150.30 CCS H62 Status 现行 Issue Date 2012-12-31 Implementation 2013-10-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A