Home / Standards / GB/T 6966.1-1986 GB/T 6966.1-1986 Abolished Types of synthetic diamond micropowder and cubic boron nitride micropowder 人造金刚石微粉和立方氮化硼微粉 品种 Standard Type GBT ICS 25.100.70 CCS J43 Status 废止 Issue Date 1986-11-01 Implementation 1987-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A