Yuav ua li cas kom paub qhov tseeb thiab tsis tseeb ntawm insulating iav?
| Peb tuaj yeem paub qhov tseeb thiab cov lus cuav ntawm insulating iav, peb tuaj yeem pib nrog 7 yoojyim: | |
2.Nws yog ib qho txhuas nrig ntawm ob lub iav ntawm cov iav insulating iav.Yog muaj ntau txoj hlua ntawm qhov txhuas lub txhuas. Cov khoom noj tau tso rau hauv, uas tuaj yeem nqus tau cov dej noo hauv cov roj thiab tiv thaiv kom huab thiab huab txhob tshwm sim tom qab lub qhov rooj iav thiab qhov rai muaj cua sov.Xav Npauj Npaim, Cov Ntsej Muag "hollow" iav tsis muaj cov cuab yeej no. 3. Ua kom lub suab rwb ntawm cov qhov rooj thiab cov qhov rai nyob rau hauv thaj av. Lub rwb thaiv tsev lub qhov rooj ntawm lub qhov rooj zoo tiag tiag thiab qhov rais yog qhov zoo heev, thiab lub rwb thaiv hluav taws xob ntawm qhov "fake" qhov rooj thiab qhov rais yog qhov dav dav. 4.Look at the appearance of profiles.The zoo profiles phau ntawv du, ilv, niaj hnub zoo li xim, dawb ntawm cov kab nrib pleb thiab npuas, thiab muaj txaus hardness.Cov ntsa ntawm qhov profile tsis tawg ntawm lub rauj. 5.Ntawm ntawm cov kab sealant.Qhov ntim ntawm cov roj hmab zoo-striped yuav tsum yog du, edg -nws shoule yuav tsum zoo nkauj thiab ywj siab, thiab nws yuav tsum muaj kev sib tw tsis tu ncua, thiab thawj tus qauv shoule tau txum tim tom qab loos tus tes. 6.Kev ntawm qhov zoo tshaj ntawm qhov profile.High insulating iav qhov rooj thiab lub qhov rais siv cov khoom siv high-profile, xws li kev paub zoo tias conch thiab cov khoom ntsuab ntsuab hauv Suav teb, thaum lub qhov muaj qhov tsis zoo ntawm cov qhov rooj thiab qhov rais siv tsawg - twv profiles, thiab ib co txawm tias theem nrab cov khoom siv dua qub nrog tes thiab taw (qhov tsos yog qhov zoo-paub) zaj duab xis ntawm qhov profile. 7.Nyob rau khoom kho khoom siv. |
