... when short of water&high temperature ,will alarm co2 MDF laser engraving machine Proper Features:1) Scientific and advanced mechanism, imported ... can be opened to process long material and easily feeding.7) The latest DSP laser control system has user_friendly windows ... is applicable to wood ,playwood ,MDF, ware ,plastics ,resin material,glass,painted metals,porcelain ,ox horn ,cloth,white jade, paper ...