Cov vuas vov tsev yog dab tsi?

Muaj ntau hom vuas vov tsev. Cov txheej txheem kev faib tawm tseem ceeb yog ua raws li lawv cov ntaub ntawv raw, suav nrog cov vuas av nplaum, cov vuas xim pob zeb, cov vuas asbestos dej sib xyaw corrugated, iav fiber ntau magnesium corrugated vuas, iav fiber ntau reinforced cement (GRC) corrugated vuas, iav vuas, xim polyvinyl chloride vuas, iav fiber reinforced polyester teeb pom kev zoo khoom, polycarbonate teeb pom kev zoo khoom, xim aluminium alloy pressed khoom, xim coated steel pressed khoom, xim hlau asphalt muaj vuas, steel rwb thaiv tsev cov ntaub ntawv sandwich panels, glazed vuas, thiab lwm yam. Ntawm lawv, av nplaum vuas, xim pob zeb pobzeb, iav vuas, iav fiber ntau magnesium corrugated vuas, iav fiber ntau reinforced cement corrugated vuas, cov vuas yog tsuas yog siv rau cov ru tsev ntawm cov vaj tse, polycarbonate teeb pom kev zoo, xim aluminium alloy pressed khoom, xim coated steel pressed khoom, steel rwb thaiv tsev khoom sandwich panels, thiab lwm yam. feem ntau yog siv rau cov tsev lag luam, asbestos dej-sib xyaw corrugated vuas, steel mesh cement vuas, thiab lwm yam. feem ntau yog siv rau cov tsev yooj yim lossis ib ntus. Glazed vuas feem ntau yog siv rau lub ru tsev lossis phab ntsa vuas ntawm vaj tsev thiab cov tsev qub qub.