... CNC Router for StoneApplicable materials :1.Suitable for natural marble, granite, bluestone, sandstone, artifical stone, tombstone, ... milestone, ceramic tile, jade, crystal, ceramics, glass, plastic, wood, bamboo, cambered surface, sphere, stainless steel, iron, copper, ... Marble, bluestone can be engraving to 3mm on time.4.Engraving characters,letters, pattern, intaglio, rilievi, handwriting, ancient ...