Home / Standards / GB/T 2476-2016 GB/T 2476-2016 Abolished Conventional abrasive—Symbols 普通磨料 代号 Standard Type GBT ICS 25.100.70 CCS J43 Status 废止 Issue Date 2016-10-13 Implementation 2017-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A