● Kev teeb tsa yooj yim vim muaj cov khoom siv tsawg dua
● Nws tuaj yeem yooj yim mounted ntawm phau ntawv xov xwm thiab cov kabmob pedestal.
● Muaj peev xwm muab faib ua ib kab, ob kab thiab plaub kab tapered cov menyuam bearings raws li tus naj npawb ntawm cov menyuam thauj khoom.