1. Peb yog cov chaw tsim khoom ntawm cov rivet dig muag rau ntau tshaj 10 xyoo ..
2. Muaj cov kab tsim khoom tshaj lij, cov thawj coj paub txog thiab cov neeg ua haujlwm txawj.
3. Muab kev pabcuam ua khoom raws li tus nqi qis tshaj plaws, cov qauv thiab / lossis kev tsim qauv yog qhov siv tau, xws li lub logo hlau, lossis kho vajtse nrog koj lub logo rau ntawm nws.
4. pheej yig, xa khoom sai, ntau yam khoom
5. Peb tuaj yeem xa khoom me me rau koj los tsim cov qauv txiav txim.