... high precision of laser engraving machine 4.CE centificatio Mini sign laser engraving machine introduction:It is equipped with ... lineInscribed bamboo-slips, wood, paper, jade article, shell, magic bean, brand , chest cards, Buddha pearl and so ... and down tableRed light positionTechnical Parameters NoDescriptionParameter1Engraving area400*3002Laser machine styleCO2 sealed glass laser, water cooling, 10. ...