Yam Taw Qhia:

Cov Khoom Siv Hluav Taws Xob Caij Nplooj Ntoos Hlav
1. Ntev mus txog 5m
2. Lub caij nplooj ntoo hlav yog ua los ntawm kub dipped galvanized hlau lossis galvanized hlau, uas tuaj yeem txuas ntxiv mus txog 5m.
3. nrog 2 rooj vag tuav insulators.

daim ntawv thov: