Txhawm rau kom ntseeg tau tias kev ua haujlwm ntev ruaj khov thiab kev nyab xeeb ntawm kev ceevile xov tooj txawb xov tooj, kev tu ib txwm tu thiab saib xyuas yog qhov tseem ceeb. Cov kauj ruam tseem ceeb suav nrog:
Tu: Huv si sai li sai tau tom qab siv. Koj tuaj yeem siv 75% cawv cawv lossis tshuab hluav taws xob ultrasonic xov tooj tu tshuab, tab sis zam kev ntxuav ncaj tus tw nrog dej.
Roj txhaws: Siv cov roj kho mob kho mob kom txo kev sib txhuam thiab suab nrov thiab tiv thaiv corrosion.
Kev soj ntsuam tsis tu ncua: ua kom cov haujlwm ua haujlwm ib txwm ntawm txhua cov khoom siv ntawm lub xov tooj ntawm tes.
Kev tua kab mob: kub thiab kub ua kom muaj kev tua kom ua kom muaj kev nyab xeeb siv.