The biggest difference between wooden fire doors and steel fire doors is that they use different materials, and they use different flame retardant treatment methods for fire protection. Welcome to consult us.

https://ztfiredoor.com/9720.html

trustile fire rated doors,3 hour rated door,120 minute fire door,half hour fire rated door,60 minute fire rated sliding doors,trustile fire rated doors,30 x 80 interior fire rated door,3 hour rated door,2hr rated access panel,half hour fire rated door,30 x 80 prehung fire rated door,trustile fire rated doors,prehung 20 minute fire rated door,half hour fire rated door,30 in fire rated door,3 hour rated door,45 minute door,90 min door