Cov Khoom Ntawm Swb

Cov khoom siv: Cov iav swb yog siv los tso cov khoom sim thaum lub sijhawm sim. Nws yog cov ntawv sib dhos, 76 * 26 mm loj, tuab thiab muaj lub teeb xa tau zoo; lub hau iav yog npog ntawm cov khoom siv kom tsis txhob muaj kua thiab lub hom phiaj lens Tiv tauj kom tsis txhob muaj paug. Daim iav yog xwmfab, muaj qhov loj me 10 * 10 hli lossis 20 * 20mm, uas yog daim nyias nyias thiab muaj lub teeb xa hluav taws xob zoo dua.