1,CE Standard 2,laser engraving machine 3,Compatible with CorelDraw, AutoCAD etc 4,Warranty:1.5 ... 2 x 2mm10Supported file formatBMP, HPGL, PLT, DST, DXP, and AI11Driving systemStepper motors12Laser tube cooling typeWater-cooling or cooling machine ... laser tube Pictures: CNC Laser cutting machine/laser cutting machine/laser engraver/high speed laser cutting machine/laser machine with CE certificat