Cov qhov rooj hluav taws muaj qhov sib txawv: steel, ntoo, steel ntoo, iav qhov rooj. Tus nqi ntawm cov qhov rooj hluav taws yuav raug txiav txim raws li qhov profile, qhov loj me thiab lub sijhawm siv hluav taws kub. Txais tos kom sab laj peb.

1 teev hluav taws qhov rooj qhov ntau thiab tsawg,hluav taws kub ntsuas qhov rooj kick phaj,hluav taws code qhov rooj dav, txheem hluav taws nyob qhov rooj qhov ntau thiab tsawg,

hluav taws kub resistant qhov rooj manufacturers,1 teev hluav taws qhov rooj qhov ntau thiab tsawg,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 code qhov rooj dav,kev nyab xeeb qhov rooj yees duab, 9 ko taw qhov rooj sab hauv,standard hluav taws nyob qhov rooj qhov ntau thiab tsawg,labeled vaj huam sib luag qhov rooj,

ntoo fireproof doorshollow,1 teev hluav taws qhov rooj qhov ntau thiab tsawg,siv qhov rooj thaum muaj xwm ceev, hluav taws kub ntsuas qhov rooj ul, hluav taws kub ntsuas qhov rooj nyob