Home / Standards / GB/T 20564.12-2019 GB/T 20564.12-2019 Active Continuously cold rolled high strength steel sheet and strip for automobile—Part 12:Dual phase steel with high formability 汽车用高强度冷连轧钢板及钢带 第12部分:增强成形性双相钢 Standard Type GBT ICS 77.140.50 CCS H46 Status 现行 Issue Date 2019-03-25 Implementation 2020-02-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A