... system 4,CE&ISO9001:2000 Auto change tool SAT-1325 3d engraving machine desktop Performance and Features:1.Entire steel frame structure ... cooling with great power,which can run continuously.9.The machine bed is heavy enought for the hight quality requirement of ... : Wood,aluminum board,plastic,density board,wave board,PVC,acrylic,crystal,light marble and other nonmetal materals and light metal materials ...