Fire door according to material classification can be divided into:
wood fire door, steel fire door, steel wood fire door and other material fire door, commonly used fire door is wood fire door and steel fire door.
Fire doors and door frames:
The door leaf of commonly used woodiness fire door and steel fire door and door frame, it is to use inflammable wood and steel to make respectively, if fill material inside door leaf, fill the fire insulation material that is avirulent and harmless to human body.
Fireproof glass on fire door:
Fire doors such as inlaid glass, should be fireproof glass, its fire resistance should meet the corresponding category of fire door conditions. (Fireproof glass shall pass the inspection by the national authorized testing institution)