Home / Standards / GB/T 29913-2025 GB/T 29913-2025 Active Medium carbon alloy bearing steel 中碳合金轴承钢 Standard Type GBT ICS 77.140.60 CCS H43 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