Home / Standards / GB/T 6408-2018 GB/T 6408-2018 Active Superabrasive—Cubic boron nitride 超硬磨料 立方氮化硼 Standard Type GBT ICS 25.100.70 CCS J43 Status 现行 Issue Date 2018-07-13 Implementation 2019-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A