Lub hom phiaj tseem ceeb ntawm kev kuaj xyuas metallographic yog kom nkag siab txog cov qauv, kev ua tau zoo, thiab qhov zoo ntawm cov ntaub ntawv txhawm rau txhim kho kev ntseeg siab ntawm cov khoom. Kev tshuaj xyuas cov xim nkag mus yog thaum pleev xim rau ntawm qhov chaw ntawm cov khoom siv, thiab kev tshuaj xyuas raug dhau yog tias qhov chaw yog pob tshab liab thiab tsis muaj qhov tawg ntawm qhov chaw. Kev tshuaj xyuas digital ultrasonic feem ntau yog siv los nrhiav cov qhov tsis zoo sab hauv thiab kev raug mob ntawm cov ntaub ntawv.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-04-2025