Home / Standards / GB/T 33142-2016 GB/T 33142-2016 Active Copper clad aluminum billets manufactured by continuous casting 连铸铜包铝棒坯 Standard Type GBT ICS 77.150.10 CCS H61 Status 现行 Issue Date 2016-10-13 Implementation 2017-09-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A