Home / Standards / GB/T 28900-2012 GB/T 28900-2012 Abolished Test methods of steel for reinforcement of concrete 钢筋混凝土用钢材试验方法 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 中国钢铁工业协会