Lub thawv roj hmab foob sawb yog siv los kaw lub qhov rooj thav duab ntawm lub thawv.Raws li nws txoj haujlwm, nws tuaj yeem muab faib ua cua thiab nag sealing sawb (rau cov thawv ntim khoom dav dav) thiab airtight rubber strip (rau thermal rwb thaiv tsev ntim). Raws li nws tus ntoo khaub lig. seem, nws tuaj yeem muab faib ua "J" hom, "C" hom, "CO" hom, "O" hom, "JC" hom sib xyaw thiab sib xyaw ua ke.
Lub ambient kub rau thawv sealing strips ranges ntawm -45 degree C mus rau ntxiv 80 degree C, thiab nws feem ntau yog ua los ntawm PVC khoom rau ntau lawm, lub neej kev pab cuam yog tsis tsawg tshaj li 5 xyoo nyob rau hauv ib txwm tej yam kev mob.
Nws muaj ntau yam zoo: 1. Lub teeb, muaj zog thiab muaj zog toughness.2. Txo cov cua sov rwb thaiv tsev thiab thermal conductivity, muaj kev txuag hluav taws xob zoo dua.3. Non-hydroscopicity nrog cov qauv npuas ywj siab, tsis tshua muaj hydroscopicity.4. Buffering cuam tshuam tsis kam, nws tuaj yeem siv los ua cov khoom siv tsis zoo5. Huab cua tsis kam.