Chong kev pheej yig chav ua hom phim yog qhov chav tshuab siv txhua yam los nres cov duab ntev, tsis tu ncua kom muaj kev pheej yig. Txhawm rau siv los hu rau chav tshuab uas siv duab vinyl los nres cov duab zos zoo li PVC window frames, hauv qab no siv kho, nws feem ntau yog qhov kev tshwm sim uas nres cov duab coil meej. Qhov kev tshwm no yog qhov tseem ceeb rau kev pab kom cov ntug meej kom nyob deb ntawm kev xub, dej, thiab dej ntsuag hauv kauj ruam thiab khiav tawm. Chav tshuab ua haujlwm los muab ib tug coil los ntawm ib tug winder mus rau ib qhov chaw nres, uas hauv no ib lub phim—feem ntau yog stretch wrap lossis ib lub polyethylene film uas tau muab rov ua ua ntej—yog muab rov ua ib puag ncig ntawm qhov chaw coil. Qhov tseem ceeb tiam siab rau kev nres zoo yog kev cuam tshuam zoo ib yam thiab kev rov ua dua, uas tsim ib tug bundle nyiag, nyiag tsis tas ntxiav thiab ua phom sij cov duab hauv. Cov ntaub ntawv tshuab tsha yam tshaj plaws ntawm chav tshuab no tuaj yeem siv shrink film, qhov uas cov coil uas tau nres tom qab ntawd dhau los saum ib qhov kab keeb, uas txawv phim kom nyiag dua rau sab nraud ntawm qhov khoom, tsim ib tug nyiag, nyiag, thiab nyiag rau dej. Cov chav tshuab no yog tshuab tshaj tshuab tshaj plaws, feem ntau muaj PLCs rau kev kho cov ntu nres, kev cuam tshuam ntawm phim, thiab kev rov qab. Lawv kuj tuaj yeem muaj cov ntaub ntawv tshuab tshaj tshuab thiab cov ntaub ntawv tshuab tshaj tshuab. Cov kev txhim kho ntawm kev siv chong kev pheej yig chav ua yog ntau yam. Nws pib txhim kho kev pab kom zoo dua dua rau kev nres los ntawm neeg nres, kom sov dua thiab nqi ntau dua rau cov khoom phom sij. Nws pib txhim kho kev sib xws thiab kev sawv cev ntawm kev nres, pib txhim kho kev sib sau hauv kev nres, thiab tuaj yeem kom sov dua rau cov ntaub ntawv los ntawm kev tswj phim zoo dua. Rau cov neeg tsim khoom siv rau cov haujlwm zoo li automotive lossis kev tsim kho, chav tshuab no yog ib qhov kev lag luag tseem ceeb rau kev daws teeb meem, kom paub tias cov khoom zoo li rubber seals lossis polymer thermal breaks tuaj txog qhov chaw muaj kev nyiag, nyiag.