... cooling 3.DSP controlling DM-1121L marble Laser engraverMarble Laser engraving machineDM-1121L marble laser engraving parameter,1. Laser tube ... , TAJIMA, 14. Working table: flat worktable (suitable for marble) 2. Optional parts1).Up and down work table, the ... work without a computer 3. Applicabe materialAcryl, Perspex, glass, wood, stone, marble, gravestone, rubber, leather, fabric, paper, cloth, ...