Home / Standards / GB/T 45450-2025 GB/T 45450-2025 Active Revert materials for superalloy—Terminology and classification 再生高温合金原料 术语和分类 Standard Type GBT ICS 77.140.99 CCS H 59 Status 现行 Issue Date 2025-03-28 Implementation 2025-10-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A