The steel fireproof door is composed of the door frame, door leaf frame and door leaf panel made of steel materials.

https://ztfiredoor.com/19695.html

fire door 1h,fire hotel door,ul listed fire door,modern luxury hotel interior fire metal door,garage fire door,hollow metal double doors fire rated steel door,fire door 1h,ul listed fire door,fire door floor sping hinge,garage fire door,automatic fire door,fire door 1h,fire fighters door,ul listed fire door,sliding fire door,garage fire door