High Efficiency ADS CNC engraving Machine JCG1212-4(four head) 1.X, Z axis dust abatement 2.Y axis ... .Multi Heads High Efficiency ADS CNC engraving machine JCG1212-2(Four heads) Performance Features 1.German-imported high precision and pre ... screw rail, minimize the gap caused by moving. 2.Import four-row steel balls linear guide rail, self-lubricating block, which ...