Home / Standards / GB/T 3045-2017 GB/T 3045-2017 Abolished Conventional abrasive—Chemical analysis of silicon carbide 普通磨料 碳化硅化学分析方法 Standard Type GBT ICS 25.100.70 CCS J43 Status 废止 Issue Date 2017-12-29 Implementation 2018-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A