Peb cov khoom vaj tse feem ntau yog ua los ntawm steel stud thiab fiberglass daim tawv nqaij, uas yog lub zog tshaj, hloov tau yooj yim, feem ntau tus nqi-zoo, thiab cov cuab yeej ua tau zoo tshaj plaws hauv kev lag luam.Lawv feem ntau yuav raug siv ua Telecom Shelter, Monitoring Shelter, lossis cov cuab yeej ua ntaub ntawv ruaj ntseg.Cov khoom siv fiberglass cov chaw nyob muaj qhov ua tau zoo, lawv tuaj yeem kav ntev dua 25 xyoo thaum huab cua huab cua.