Home / Standards / GB/T 38471-2023 GB/T 38471-2023 Active Recycling material for copper 再生铜原料 Standard Type GBT ICS 77.150.30 CCS H62 Status 现行 Issue Date 2023-05-23 Implementation 2023-12-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A