High Efficiency ADS CNC engraving Machine JCG1212-4(four ... 2.Y axis square orbit 3.Multi Heads High Efficiency ADS CNC engraving machine JCG1212-2(Four heads) ... Performance Features 1.German-imported high precision and pre-tightening ball screw rail, ... strengthen the surface, durable, long life without deformation, high accuracy of reposition. Suitable Materials: Wood, Plastic, Aluminium, ...