Home / Standards / GB/T 4337-2025 GB/T 4337-2025 Active Metallic materials—Fatigue testing—Rotating bar bending method 金属材料 疲劳试验 旋转弯曲方法 Standard Type GBT ICS 77.040.10 CCS H22 Status 现行 Issue Date 2025-08-29 Implementation 2026-03-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A