When the fire is open, the steel fire door can be freely opened for escape or closed for smoke evacuation and waiting for rescue.

https://ztfiredoor.com/14032.html

izolyatsiyalangan yong’inga qarshi eshik,maxsus yong’in eshiklari,fire rated crittall doors,residential fire rated doors lowe’s,fire rated french doors,1 soatlik devordagi eshik reytingi,yong’inga qarshi eshik,izolyatsiyalangan yong’inga qarshi eshik,fire rated crittall doors,garage fire door lowe’s,1 soatlik devordagi eshik reytingi,yong’inga chiqish eshigi narxi,izolyatsiyalangan yong’inga qarshi eshik,garaj va uy o’rtasidagi yong’inga chidamli eshik,fire rated crittall doors,90 daqiqa yong’in eshigi,1 soatlik devordagi eshik reytingi,therma tru fire rated doors