Cov tsos ntawm qhov hluav taws kub steel qhov rooj yog kho nrog qhov tseeb electrostatic txau, uas yog anti-flammable, anti-tub sab tub nyiag, zoo nkauj thiab ruaj. Hluav taws kub lub qhov rooj muaj qhov nplaim taws ntev ntev los tiv thaiv hluav taws kom tsis txhob kis, txiav tawm qhov hluav taws kub, thiab siv zog rau lub sijhawm tua hluav taws.

hollow hlau qhov rooj jamb widths,hluav taws kub ntsuas qhov rooj kick phaj,hollow hlau qhov rooj , hollow hlau qhov rooj sault ste marie ,

hluav taws kub resistant qhov rooj manufacturers,hollow hlau qhov rooj jamb widths,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,tus nqi ntawm hollow hlau qhov rooj,kev nyab xeeb qhov rooj yees duab, 9 ko taw qhov rooj sab hauv,hollow hlau qhov rooj sault ste marie,labeled vaj huam sib luag qhov rooj,

ntoo fireproof doorshollow,hollow hlau qhov rooj jamb widths,siv qhov rooj thaum muaj xwm ceev, hluav taws kub ntsuas qhov rooj ul, hluav taws kub ntsuas qhov rooj nyob