The Beijing industrial university success developed the directionalarrangement crystal to have to rub has and a kind of diamond (DLC) thetextile fiber rubs has the new source material cutting tool with torub has, like grinding wheel, you shi  and so on. Uses DLCtextile fiber to replace thin mo li  takes the grinding compound,overcame existing has rubbed has small and the intensity weak causesbecause of the thin  mo li cementation area normally to rub truncatesunder the condition thin mo li  easily from to rub has the shortcomingwhich on the surface fell off, had the crystal to have or the DLCtextile fiber direction detection arrangement also with rubs has rubstruncates the appearance vertically, rubbed truncates the abilitystrongly, the resistance to wear good, the life is long and so on themerit; The crystal must rub has rubs truncates compared to 2200, inrepairs sharply latter 6,000, rubs truncates the efficiency to enhanceabove 10 times; The crystal must rub has, the DLC textile fiber rubshas the distinction jing mo molding tool steel (HRC60), the siliconchip may obtain the nanometer level processing surface (Ra1.5/Rv16nm)and (Ra2.5nm/26nm); jing mo, grinds may use identical to rub has, doesnot need special to grind and to polish the working procedure. Issuitable to precisely processes each kind with nanometer difficult toprocess the material and the hard crisp material and so on.