... 40W or 60W laser tube 3,CE certificate laser engraver for sale Feature:This type machine is a kind of laser engraving ... machine system equipped with Co2 laser tube,it is used to engrave on acrylic, PVC, rubber sheet, plastic, crystal, ... , Red light pointer,AutofocusApplicable materialAcrylic, crystal, glass, ceramic, marble, metal coating, cloth, fabric, wood etc.(DSP off-line control system ...