Home / Standards / GB/T 39733-2024 GB/T 39733-2024 Active Recycling iron-steel materials 再生钢铁原料 Standard Type GBT ICS 77.140.01 CCS H40 Status 现行 Issue Date 2024-11-28 Implementation 2025-06-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A