Home / Standards / GB/T 41324-2022 GB/T 41324-2022 Active Fire-resistant weathering steels for structure 耐火耐候结构钢 Standard Type GBT ICS 77.140.01 CCS H46 Status 现行 Issue Date 2022-03-09 Implementation 2022-10-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A