1. hauv accordance nrog tswj kev kawm faib ua: electromechanical barrier rooj vag, ib cov rooj vag, shutter ntse, ntse xauv LED zaub, nrog rau lub suab tshaj tawm hauv xov feature.
2. raws mus nres rods yuav raug muab faib ua: ncaj bar rooj vag laj kab, barrier, ib nkhaus bar Barrier rooj vag
3. raws rau tus yuav tsaws ceev faib ua: cauj ke dampers, ceev barrier, barrier qeeb ceev
4. raws rau tus plahaum qhia yog muab faib ua: xis thiab sab laug rooj vag rau rooj vag