Home / Standards / GB/T 2479-2022 GB/T 2479-2022 Active Conventional abrasive—White fused alumina 普通磨料 白刚玉 Standard Type GBT ICS 25.100.70 CCS J43 Status 现行 Issue Date 2022-03-09 Implementation 2022-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A