... China High effiency Long service tim BDK engraving glass polish wheel for CNC machine Specification(mm): NameOuter DiameterThicknessInner Diameter glass grooving SERIES2004,6,8 ... ,15,20501603,6,8,10,15,2022,90 Machine semi-automatic glass engraving machine and CNC-machine UsageIt is mainly used in grooving mirror ... the basis of high-quality products. BDK engraving glass polish wheel for CNC machine