Home / Standards / GB/T 6406-2016 GB/T 6406-2016 Active Superabrasive—Checking the grain size 超硬磨料 粒度检验 Standard Type GBT ICS 25.100.70 CCS J43 Status 现行 Issue Date 2016-10-13 Implementation 2017-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A