Peb qhov zoo:
1. Tiancong Hoobkas muaj peb tus kheej kev pab neeg thiab ua cov kab, pom zoo los ntawm ISO9001 system daim ntawv pov thawj, tuaj yeem tsim cov duab tshwj xeeb, qhov loj me ntawm cov neeg siv khoom.
2. Ntau tshaj 30 xyoo kev tsim khoom, tuaj yeem pab cov neeg siv khoom kom tsis txhob muaj qee qhov yuam kev.
3. Kev tswj nruj nruj los ntawm kev tsim khoom, kev kho deg, ntim khoom.
4. Kev txiav txim me me tau txais
