1, Adopt the USB mainboard 2, Classical design for art work engraving and cutting. 3, Easily adjust,nonmetal... Technology parameters:TypeJMD-K1JMD-K7Laser power40w40wPower voltage 220V/50HZ220V/50HZMax enggraving area170*100mm170*100mmResolution ratio0.0150.01Laser cooling wayWater coolingWater coolingDimension800*530*270mm800*530*270mm 1. The plotters (work platform) as one structure, accurate. ...