Home / Standards / GB/T 5680-2023 GB/T 5680-2023 Active Austenitic manganese steel castings 奥氏体锰钢铸件 Standard Type GBT ICS 77.140.80 CCS J31 Status 现行 Issue Date 2023-05-23 Implementation 2023-05-23 Responsible Dept 国家标准委 Drafting Unit N/A