Home / Standards / GB/T 20065-2025 GB/T 20065-2025 Active Screw-thread steel bars for the prestressing of concrete 预应力混凝土用螺纹钢筋 Standard Type GBT ICS 77.140.15 CCS H44 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