The steel fireproof door can be provided with window, shutter, ventilation shutter, etc. as required. According to the different fire resistance of steel fire doors, their fire resistance can be divided into three grades: A, B and C.

https://ztfiredoor.com/14239.html

fire proof door for garage,fire rated aluminum doors,2hr fire rated door,fire rated door garage to house,fire rated composite doors,2 hour fire door,fire rated overhead door,2hr fire rated door,fire rated storefront,fire rated shutter,fire proof door for garage,36×80 fire rated door,fire protection door,fire rated composite doors,fire rated bifold doors,2hr fire rated door,fire rated composite doors,front fire door,fire proof door for garage