China 'GB/T 20564.12-2019
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 20564.12-2019
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
Issued Date:2019
Implemented Date:2020-2-1
Issued by:
The Standardization Administration of the People's Republic of China