Home / Standards / GB/T 2481.2-2009 GB/T 2481.2-2009 Abolished Bonded abrasives - Determination and designation of grain size distribution - Part 2: Microgrits 固结磨具用磨料 粒度组成的检测和标记 第2部分：微粉 Standard Type GBT ICS 25.100.70 CCS J43 Status 废止 Issue Date 2009-04-23 Implementation 2009-12-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会