... operation with usb flash Water-cooling unit Honeycomb worktableApplicable materials: wood, bamboo, jade, marble, organic glass, crystal, plastic, garments, paper ... Applicable industries: advertisement, arts and crafts, leather, toys, garments, model , building upholster, computerized embroidery and clipping, packaging and paper industry ... 18 hours. DW--Handicraft laser engraving machine(6040 model )