Home / Standards / GB/T 24595-2020 GB/T 24595-2020 Abolished Hot-rolled steel bars for quenched and tempered automobile crankshafts 汽车调质曲轴用热轧钢棒 Standard Type GBT ICS 77.140.60 CCS H54 Status 废止 Issue Date 2020-03-06 Implementation 2020-10-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A