... Germany 4)wear resistant,prevent rust,no burr Circular paper trimmer knives : 1)Function:The knife is used to trim ... ,CNC machine and so on5)Commodity list: CommodityProjectCircular paper trimmer knivesMaterialSKH,SKD etc.Diameter 300mm or depends on the customer ... grinding machine ,CNC machine etc.6)Advantages: Circular paper trimmer knives has good abrasion resistance and high processing accuracy.The ...