Home / Standards / GB/T 5223-2025 GB/T 5223-2025 Active Steel wire for prestressing of concrete 预应力混凝土用钢丝 Standard Type GBT ICS 77.140.65 CCS H49 Status 现行 Issue Date 2025-10-05 Implementation 2026-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A