Home / Standards / GB/T 5224-2014 GB/T 5224-2014 Abolished Steel strand for prestressed concrete 预应力混凝土用钢绞线 Standard Type GBT ICS 77.140.15 CCS H49 Status 废止 Issue Date 2014-06-24 Implementation 2015-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A