Daim ntawv tiv thaiv ces kaum los ntawm ib daim ntawv kraft thiab ntau txheej ntawm cov ntawv xov paj rwb mounted, qhov zoo dua ntawm cov khoom siv raw siv, qhov zoo dua qhov nyuaj ntawm daim ntawv tiv thaiv ces kaum, los ntawm qhov kev pom ntawm kev tshaj lij, daim ntawv tiv thaiv ces kaum tsis yog qhov tuab dua qhov zoo dua, tab sis qhov zoo dua siv daim ntawv qhov siab dua lub zog.















