... years durable ISO2008 high cutting efficiency LONGDA BDK engraving wheel for CNC machine in china PRODUCT DESCRIPTION BDK engraving wheel , also called Glass ... stuffing. This polishing wheel is perfectly used on glass engraving machine or CNC machine. It has good flexibility and polishing efficiency. The characteristics ... ,6,8,10,15,2022,90 LONGDA BDK engraving wheel for CNC machine in china