... square guideway 5.DSP offline Stone CNC Engraving Machine ZK-9015 Application1.Suitable for natural marble, granite, bluestone, sandstone, artifical stone, tombstone, milestone, ceramic tile ... , can doing 3D embossment, and line engraving, bevelling, drilling 2D engraving.2.Such as granite stone can be layered engraving to 3mm3. Marble, bluestone can ...