Home / Standards / GB/T 4223-2017 GB/T 4223-2017 Active Iron and steel scraps 废钢铁 Standard Type GBT ICS 77.080.01 CCS H40 Status 现行 Issue Date 2017-10-14 Implementation 2018-07-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A