... Machine ZK-9015 Application1.Suitable for natural marble, granite, bluestone, sandstone, artifical stone, tombstone, milestone, ceramic tile, jade, crystal, ... engraving, bevelling, drilling 2D engraving.2.Such as granite stone can be layered engraving to 3mm3. Marble, bluestone can ... colored drawing, flat carving colored drawing, etc on stone,glass, depth can control optionally, to reach the artistic ...