... ,wholly iron cast ,moving working table squ High Precision Jade CNC Engraver ,CE Authorized Productsthis is the newest model ... and grestly increase the precision and speed of the engine bed. Features:Integral cast-iron frame, embedded square linear, much ... rotary device ,servo system system are optionalApplication field:special for jade plaques engraving,also for Sign board process, mould, bronzing , ...