Home / Standards / GB/T 2480-2008 GB/T 2480-2008 Abolished Conventional abrasive - Silicon carbide 普通磨料 碳化硅 Standard Type GBT ICS 25.100.70 CCS J43 Status 废止 Issue Date 2008-06-03 Implementation 2009-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会