Feem ntau ntawm cov qhov rooj hluav taws steel yog kho los ntawm kev txau nto. Cov khoom hnav-resistant xws li pulleys hauv lub qhov rooj hluav taws kub yog txhua yam khoom siv zoo, uas yog cov khoom zoo thiab ua haujlwm ntev.

hluav taws tsev qhov rooj,internal firedoor,hluav taws nyob rau pem hauv ntej qhov rooj rau flats,24 x 80 hluav taws ntsuas qhov rooj,4 vaj huam sib luag ntoo thuv hluav taws qhov rooj,hluav taws kub retardant qhov rooj nqe, 1 teev hluav taws kub ntsuas qhov rooj,hluav taws tsev qhov rooj,45 feeb hluav taws nyob sab hauv qhov rooj,hluav taws nyob rau pem hauv ntej qhov rooj rau flats,6 vaj huam sib luag du hluav taws qhov rooj,4 vaj huam sib luag ntoo thuv hluav taws qhov rooj,hluav taws kub ntsuas hlau qhov rooj nqe,hluav taws nyob rau pem hauv ntej qhov rooj rau flats,benchmarx hluav taws qhov rooj, steel qhov rooj xwm txheej ceev,hluav taws tsev qhov rooj,hluav taws barrier qhov rooj,4 vaj huam sib luag ntoo thuv hluav taws qhov rooj,hluav taws pov thawj sliding qhov rooj