qhov rooj qhov rooj nrog lub zeem muag vaj huam sib luag, sab hauv hluav taws qhov rooj, ob lub vaj huam sib luag hluav taws qhov rooj

Lub qhov rooj steel fireproof yog lub qhov rooj ncej, lub qhov rooj nplooj ncej thiab lub qhov rooj nplooj vaj huam sib luag ua los ntawm cov ntaub ntawv steel. Yog hais tias lub qhov rooj nplooj yog ntim nrog cov ntaub ntawv, nws yog ntim nrog hluav taws kub thiab rwb thaiv tsev cov ntaub ntawv uas tsis muaj teeb meem rau tib neeg lub cev. Raws li qhov sib txawv ntawm qhov hluav taws kub ua tau zoo ntawm steel qhov rooj hluav taws, lawv qhov hluav taws kub tuaj yeem muab faib ua peb qib: A, B, thiab C. Steel qhov rooj hluav taws ntawm cov qib sib txawv tuaj yeem siv rau ntau qhov chaw.

ob lub vaj huam sib luag hluav taws qhov rooj,hluav taws kub nyab xeeb qhov rooj,chaw ua hauj lwm qhov rooj nrog lub zeem muag vaj huam sib luag,hluav taws qhov rooj nrog iav qhov rais,hauv qhov hluav taws kub,90 feeb wood qhov rooj,ob lub vaj huam sib luag hluav taws qhov rooj,54mm hluav taws qhov rooj, rebated hluav taws qhov rooj,chaw ua hauj lwm qhov rooj nrog lub zeem muag vaj huam sib luag,coj mus muag hluav taws qhov rooj nrog iav,chaw ua hauj lwm qhov rooj nrog lub zeem muag vaj huam sib luag,hluav taws kub ntsuas qhov rooj nrog qhov rais,hauv qhov hluav taws kub,hluav taws kub qhov rooj rau tiaj tus, dawb tsev hluav taws qhov rooj,ob lub vaj huam sib luag hluav taws qhov rooj,24 nti hluav taws kub ntsuas qhov rooj,hauv qhov hluav taws kub

qhov rooj qhov rooj nrog lub zeem muag vaj huam sib luag, sab hauv hluav taws qhov rooj, ob lub vaj huam sib luag hluav taws qhov rooj-ZTFIRE Door- Fire Door,Fireproof Door,Fire rated Door,Fire Resistant Door,Steel Door,Metal Door,Exit Door