Cov qhov rooj iav qhov rooj muaj qhov zoo ntawm kev pom thiab zoo nkauj thiab dav, uas ua rau nws tsim nyog rau txhua yam ntawm cov chaw ua haujlwm siab, tsev kho mob thiab txhua yam chaw lag luam, iav qhov rooj hluav taws uas ua rau kev teeb tsa ntawm txhua qhov chaw pej xeem ntau dua. zoo nkauj, lub zuag qhia tag nrho kev ua tau zoo yog ntau natural

hluav taws tawm qhov rooj,hluav taws kub ntsuas qhov rooj kick phaj,fire shutter, iav qhov rooj hluav taws,

hluav taws kub resistant qhov rooj manufacturers,hluav taws tawm qhov rooj,ob chav steel ruaj ntseg qhov rooj nrog kho vajtse, duab ntawm ntoo kev ruaj ntseg qhov rooj rau flats, ruaj ntseg qhov rooj 820,hluav taws kaw,kev nyab xeeb qhov rooj yees duab, 9 ko taw qhov rooj sab hauv,iav qhov rooj hluav taws,labeled vaj huam sib luag qhov rooj,

ntoo fireproof doorshollow,hluav taws tawm qhov rooj,siv qhov rooj thaum muaj xwm ceev, hluav taws kub ntsuas qhov rooj ul, hluav taws kub ntsuas qhov rooj nyob