Steel frame wood fire doors and steel doors is a concept
Steel wooden door: generally refers to a kind of room decoration door series. The outer layer is a steel plate, which use wooden, paper shell and other environmental protection material filling, price concessions, mid-range interior doors on the market more mature relatively high degree of acceptance.
Steel wood fire doors that wood fire doors. The door is made of double layer board, which is coated with a galvanized iron sheet or a double layer wood board with a single side of a gypsum board, and a double layer board and a double layer of asbestos can be used. The new standard fire door fire door provisions of steel wood burning wood or difficult burning wood products making door frame and door frame, door panel, door fire insulation materials filling material is non-toxic and harmless to the human body and steel, and with fire hardware fittings with certain refractory properties of the door. The fire resistance of the fire doors are above 1.2H.
Steel frame wood fire doors and steel doors is not a concept: filling the former for fire insulation materials; the latter is filled using wooden, paper shell and other environmental protection material interior door.
