Home / Standards / GB/T 42537-2023 GB/T 42537-2023 Active Specification of heat treatment for super-scale steel forgings 特大型锻钢件的热处理规范 Standard Type GBT ICS 77.140.85 CCS J32 Status 现行 Issue Date 2023-05-23 Implementation 2023-05-23 Responsible Dept 中国机械工业联合会 Drafting Unit N/A