Lub qhov rooj fireproof sealing sawb yog ntsia rau hauv qab ntawm lub qhov rooj fireproof. Thaum lub qhov rooj kaw, nws yuav cia li txuas lub txav txav mus rau hauv qab kom nias hauv av thiab kaw qhov sib txawv ntawm lub qhov rooj hauv qab thiab hauv av. Qhov hluav taws kub qhov rooj sealing sawb tiv thaiv cov pa phem los ntawm kev nkag mus rau hauv chav los ntawm qhov sib txawv ntawm lub qhov rooj hauv qab ntawm qhov pib ntawm hluav taws.

90 feeb qhov rooj,dov hluav taws shutter, 32 x 80 20 feeb hluav taws ntsuas qhov rooj,36 nti hluav taws ntsuas qhov rooj lowe’s 36,tsis siv neeg tua hluav taws kaw,hluav taws kub folding qhov rooj,5 vaj huam sib luag hluav taws kub ntsuas qhov rooj,36 nti hluav taws ntsuas qhov rooj lowe’s 36,hluav taws kub tsis siv neeg zawv zawg qhov rooj,hluav taws kub folding qhov rooj,chaw nres tsheb rau lub tsev hluav taws qhov rooj,90 feeb qhov rooj,hluav taws kev nyab xeeb qhov rooj nyob rau hauv flats,36 nti hluav taws ntsuas qhov rooj lowe’s 36,hluav taws qhov rooj hloov tus nqi,hluav taws kub folding qhov rooj,qauv 10 qhov rooj hluav taws,90 feeb qhov rooj