Home / Standards / GB/T 40383-2021 GB/T 40383-2021 Active Hot-rolled twin-roll cast carbon steel sheet and strip of commercial quality 商品级双辊铸轧热轧碳素钢薄钢板及钢带 Standard Type GBT ICS 77.140.50 CCS H46 Status 现行 Issue Date 2021-08-20 Implementation 2022-03-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A