Home / Standards / GB/T 16270-2009 GB/T 16270-2009 Active High strength structural steel plates in the quenched and tempered condition 高强度结构用调质钢板 Standard Type GBT ICS 77.140.50 CCS H46 Status 现行 Issue Date 2009-06-25 Implementation 2010-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会