Lub Hoobkas muaj peev xwm tsim khoom loj thiab luam cov hnab yas ntim ntau yam duab, qhov ntau thiab tsawg, xim thiab thicknesses kom tau raws li qhov xav tau ntawm cov neeg siv khoom sib txawv thiab kev lag luam. Xyuas kom meej tias lawv tsim nyog rau kev ntim khoom ntawm ntau yam khoom. Txawm hais tias nws yog ntim khoom noj, ntim khoom lag luam, kev thauj mus los thiab kev thauj mus los, cov khoom siv niaj hnub, lossis kev siv hauv kev lag luam, peb tau cog lus los muab cov kev daws teeb meem ntim yas.
Tso Ib Lus