Home / Standards / GB 6966.3-86 GB 6966.3-86 Test method for particle size distribution of synthetic diamond micropowder and cubic boron nitride micropowder 人造金刚石微粉和立方氮化硼微粉 粒度组成检验方法 Standard Type GB ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A