Cov txheej txheem ua haujlwm rau ob lub laser engraving thiab CNC engraving tshuab yog zoo tib yam. Thaum laser engraving tshuab yog technically ib hom CNC engraving tshuab, muaj qhov sib txawv tseem ceeb ntawm ob. Cov kev sib txawv tseem ceeb yog cov qauv kev ua haujlwm, cov qauv tsim, kev ua tau zoo, kev ua tiav, thiab cov tshuab cua txias.