Engraver Machine JCM1212-4 Seamless steel welded lathe bed Ball screw Rod on XYZ Square linear guide rail on Y Four spindles Engraver Machine JCM1212-4Features :*German-imported high precision and pre-tightening ball screw rail ,minimize the gap caused by moving .*mported four-row steel ball linear guide rail , self-lubrication block ,which duarantee the equal stress direction , mechical strength ...