1.For marble,granite,tombstone, milestone... 2. Stable T 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, ceramics, glass ...