Home / Standards / GB/T 38470-2019 GB/T 38470-2019 Abolished Recycling materials for brass 再生黄铜原料 Standard Type GBT ICS 77.150.30 CCS H62 Status 废止 Issue Date 2019-12-31 Implementation 2020-07-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A