Home / Standards / GB/T 31967.4-2025 GB/T 31967.4-2025 Active Test method for physical property of rare earth permanent magnetic materials—Part 4:Determination of compressive strength 稀土永磁材料物理性能测试方法 第4部分:抗压强度的测试 Standard Type GBT ICS 77.120.99 CCS H14 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 国家标准委 Drafting Unit N/A