... type structure, especially for heavy duty stone 3.High precsion JC-1318 Marble Stone CNC Engraving Machine/CNC Router for ... StoneApplicable materials :1.Suitable for natural marble, granite, bluestone, sandstone, artifical stone, tombstone, milestone, ceramic tile, jade, crystal ... 2D engraving.2.Such as granite stone can be layered engraving to 3mm3. Marble, bluestone can be engraving to ...