Muaj nuj nqi {---- louvers tso cai pub dawb cua hla kev los ntawm lawv qhov loj me lossis tsim. Lawv diffuse lossis tswj kev taw qhia ntawm cov pa hniav hniav sib tsoo.
Ntxig cov louvers ---- cov louvers feem ntau siv nyob rau hauv tus qauv steel qhov rooj yog ntawm cov qauv tsim ua kom tau nce mus rau hauv lub qhov rooj thiab cov ncej sib tshooj. Inverted "hniav," Z "lossis chevron-hom hniav, kho kom haum tus kheej cov hom phiaj hluav taws xob muaj ntau qhov ntau thiab tsawg. Kuj muaj ntawm qee cov steel qhov rooj manufacturers yog ib qho kev tsim cov khoom siv Louver. Ntxig cov cuab yeej cuab tam rau sab nrauv cov qhov rooj lossis lwm lub qhov rooj uas kev ruaj ntseg yog qhov kev txiav txim siab yuav tsum tau fasteners lossis cov khoom sau raws li.
