... engraving machine: bamboo slips, wood, paper,jade, fabric,lether,shell, and the devil beans, signs, badge, in areas Laser Engraver uses ... 1 focus optic (11) Rotary attachment(option) Applicable materials:Cutting and engraving: rubber, plastic, organic glass, cloth, leather, wool ... force effects. The zone influenced through heat is minimal and the material structure remains.Transparent costs:The cost of ...