... double motor 2) strong and solid machine body & gantry 3)High precision 4)Guaranteed byCE/ISO9000 cnc engraving machine for glassFeatures:1.Excellent design and ... and waterproof design ensure stable transmission. Application:3D/2D engraving,Embossment,Line engraving ,Cutting,Edge inversing,Drilling on Natural stones,Granites,Artifical ... of X,Y axis Ball screw of Z axis. cnc engraving machine for glass