... from Japan and Germany 4)wear resistant,long service life NC slitter knives :1):Hardness:HRC 89-912)Thickness: 1.5mm ... , Germany grinding machine ,CNC machine etc.7)Commodity list:: CommodityProject NC slitter knives Material TCT Specification 270*168.3260*158 etc ... and no hole Service type OEM,ODM etc.8)Advantages: NC slitter knives has good abrasion resistance and high processing accuracy ...