Home / Standards / GB/T 3278-2023 GB/T 3278-2023 Active Hot-rolled steel plates, sheets and strips for tools 工具用热轧钢板和钢带 Standard Type GBT ICS 77.140.50 CCS H46 Status 现行 Issue Date 2023-09-07 Implementation 2024-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A