... Jade Engraving , newest design , water cooling system,wholly iron cast ,moving working table squ High Precision Jade CNC Engraver , ... model ,with moving working table , water cooling system,integral cast iron frame ,square linear guide way ,and ball-screw transmission ... jade plaques engraving,also for Sign board process, mould, bronzing ,badge, pattern mould, art carve, sign and label etc... Parameters ...