1. Kev pab cuam tom qab muag Nco ntsoov: Yog tias muaj teeb meem pom thaum siv peb cov khoom, thiab kev txhawb nqa tuaj yeem ua tau't daws,thov qhia peb, thiab peb'yuav teb koj cov kev daws teeb meem hauv 24 teev.
2.Quality sure: Peb cov khoom yogkuaj ua ntej pawg ntau lawm kom lav qhov zoo.Peb kujyuav tsim qee qhov chaw kom txo tus nqi rau ob tus neeg siv khoom thiab peb lub tuam txhab.
3.Cov nqi sib tw: Peb muaj txiaj ntsig rau lub sijhawm ua lag luam nrog txhua tus neeg siv khoom, yog li peb hais peb tus nqi zoo tshaj plaws thaum pib, vam tias yuav pab koj.txuag nqi ntau dua.