... high internsity reflex and focus lens 4.chiller 100w laser crystal engraving machine Features:Taking CO2 laser tube as thermal ... it wont scratch the surface of the object and get small cutting slot. It has high precision and it is the ... industries.Applicable Materials: wood, acrylic,bamboo, jade, marble, organic glass, crystal, plastic, garments, paper, leather, rubber, ceramic,glass and other nonmetal ...