Home / Standards / GB/T 45981.2-2025 GB/T 45981.2-2025 Active Heavy casting and forging for heavy-duty gas turbine—Part 2:Superalloy die forgings 重型燃气轮机用大型铸锻件 第2部分:高温合金模锻件 Standard Type GBT ICS 77.140.85 CCS J32 Status 现行 Issue Date 2025-08-01 Implementation 2026-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A