Home / Standards / GB/T 28899-2012 GB/T 28899-2012 Abolished Wire rods for cold rolled ribbed steel bars 冷轧带肋钢筋用热轧盘条 Standard Type GBT ICS 77.140.60 CCS H44 Status 废止 Issue Date 2012-11-05 Implementation 2013-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A