CBN(Cubic boron nitride),the second hardest material as superabrasives,only less hard than industrial diamond,the amber colored and black colored CBN(Cubic boron nitride) are the ideal material to used in resin,metal,vitrified and electroplated bond grinding wheels,polishing wheels. CBN-the ideal superabrasive to machining HSS(High speed steel) tools. Please chose our cBN crystal and cBN micron powder. LEADAR SUPERABRASIVES CO.,LTD. Address:suit 1507, weiyi.xingcheng international building ,216#,Shaoshan road(North),Changsha,Hunan,China Contact:Mr.Allen Tel:+86-731-4133907 Fax:86-731-2284416 E-mail: Website: