Fire doors are divided into Class A, Class B and Class C according to the fire rating. Among them, the fire resistance time of Class A fire doors is not less than 90 minutes. As long as the fire doors meet this condition, they can be called Class A fire doors. Welcome to consult us.

https://ztfiredoor.com/20796.html

36×80 fire door,fire rated industrial doors,fire rated exit door,fire rated entry door lowes,steel fire door for garage,internal fire doors prices,36×80 fire door,30×80 fire rated door,fire rated exit door,steel fire door for garage,fire rated door,36×80 fire door,fire retardant door price,fire rated exit door,1.5 hour fire rated door,steel fire door for garage