Cov txheej txheem ntim khoom yooj yim tuaj yeem muab rau koj nrog ntau yam khoom siv xaiv, thiab raws li koj xav tau, pom zoo kom haum thickness, noo noo thiab oxygen barrier zog, hlau nyhuv cov ntaub ntawv kom tau raws li koj ntau yam ntim xav tau.
Nws tuaj yeem thaiv electromagnetic yoj nkag mus, tiv thaiv hluav taws xob hluav taws xob, tiv thaiv cov ntaub ntawv hluav taws xob los ntawm kev xau, thiab tiv thaiv electromagnetic cuam tshuam.