Kev ua haujlwm ntawm dej-raws li UV kua roj vanish

Txhim kho cov nyhuv zoo nkauj: Dej raws li UV kua roj vanish tuaj yeem tsim cov nyhuv gloss ntawm cov ntaub ntawv luam tawm, ua rau lawv zoo nkauj dua thiab pom qhov muag.
Txhim kho durability: Cov txheej txheej tsim los ntawm dej-raws li UV kua roj vanish muaj cov yam ntxwv xws li waterproofing, roj tsis kam, hnav tsis kam, thiab tshuaj tiv thaiv corrosion, ncua kev pab cuam lub neej ntawm cov ntaub ntawv luam tawm.
Txhim kho kev ua haujlwm zoo: Dej raws li UV kua roj vanish muaj kev kho ceev ceev, uas tuaj yeem txhim kho kev tsim khoom thiab txo cov nqi los ntawm 4.
Cov yam ntxwv ntawm Kev Tiv Thaiv Ib puag ncig: Muab piv rau cov tshuaj hnyav raws li txheej txheej, dej-raws li UV kua roj vanish yog hnyav-dawb, VOC tsawg, thiab tus phooj ywg ib puag ncig, raws li lub tswv yim ntawm kev tiv thaiv ib puag ncig ntsuab.