Kev xaiv cov khoom siv rau cov hlau deburring yuav tsum xav txog ntau yam, suav nrog cov khoom siv ntawm cov khoom ua haujlwm, nws qhov loj me, cov duab, qhov xav tau deburring, ntim ntau lawm, thiab pob nyiaj siv. Nov yog cov ntsiab lus tseem ceeb uas yuav tsum tau xav txog thaum xaiv cov khoom siv: Cov yam ntxwv ua haujlwm: Cons ...
Nyeem ntxiv