Home / Standards / GB/T 20065-2016 GB/T 20065-2016 Abolished Screw-thread steel bars for the prestressing of concrete 预应力混凝土用螺纹钢筋 Standard Type GBT ICS 77.140.60 CCS H44 Status 废止 Issue Date 2016-12-13 Implementation 2017-09-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A