... X axis -no dust structureC.Imported ball screwsAdvertising Engraving Machine Features:A.Linear guide rail,the bearing of the lead ... changing water cooled spindle can cut 20-30mm organic glasss at one cut,widly applies to adertising,mold,gifts, ... exquisite relief,video sculpture,three-dimensional art works Advertising Engraving Machine Configuration:1.Whole Steel structure, imported square orbit, ball ...