Home / Standards / GB/T 20564.3-2017 GB/T 20564.3-2017 Active Continuously cold rolled high strength steel sheet and strip for automobile—Part 3: High strength interstitial free steel 汽车用高强度冷连轧钢板及钢带 第3部分: 高强度无间隙原子钢 Standard Type GBT ICS 77.140.50 CCS H46 Status 现行 Issue Date 2017-09-07 Implementation 2018-06-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A