... use SH-690 laser cutting and engraving machine Applicable mateicals >Plexiglass,acrylic,wooden board,plastic,rubber,crystal,ceramic tile, ... gifts,cloth toy,marble,grantile,crystal,paper product,acrylic etc. industries3.Technical parameters > Laser power :60W(70w,80w,100w ... -optional)Laser type:Hermetic CO2 glass tubePower supply ...