Home / Standards / GB/T 25049-2024 GB/T 25049-2024 Active Ferronickel 镍铁 Standard Type GBT ICS 77.100 CCS H 42 Status 现行 Issue Date 2024-04-25 Implementation 2024-11-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A