Cubic boron nitride(CBN) is second only to diamond in hardness of superhard materials. It not only has many good characteristics of diamond, and also has higher thermal stability and chemically inert for the iron group metals and their alloys. As engineering materials, it has been widely used  in processing industries in ferrous metal and alloy materials. Because of the excellent performance in Thermal, electrical, optical and acoustic, it has been a functional material with prospects for development.

      Used in precision grinding, polishing and super-finishing, in order to achieve high-precision machined surface. Being suitable for resin, metal, ceramics binder system, it can be used for  production of sintered polycrystalline composite film, and also  be used as abrasive gain, grinding paste.