Home / Standards / GB/T 15019-2003 GB/T 15019-2003 Abolished Designation and classification of rapidly quenched metals 快淬金属分类和牌号 Standard Type GBT ICS 77.140.01 CCS H58 Status 废止 Issue Date 2003-11-03 Implementation 2004-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会