Ntev Lifespan: Corrosion-tiv taus thiab tiv thaiv- kev laus, nrog rau kev pab lub neej ntev txog kaum xyoo.
Tus Nqi Them Tsawg: Tsis tas yuav tsum tau pleev xim ntau zaus lossis hloov, txuag cov nqi ntev -.
Aesthetics: Nto tuaj yeem polished, txhuam, lossis txau, yoog rau ntau yam kev kho kom zoo nkauj.
Kev Nyab Xeeb Siab: Cov qauv ruaj khov, ua tau raws li cov qauv kev nyab xeeb hauv tsev.