The difference between steel fire doors and wooden fire doors
In China, the fire door in accordance with the different materials, mainly wood fire doors and steel fire doors two types, there are also steel doors and other fire doors and doors of the use of very few, 99% of the market are wood and Steel fire doors. As the name suggests wood fire doors are made of wood as a frame material, filled with refractory material inside, to make it a flame retardant performance of a door. Steel fire door its internal filling in the wood fire door exactly the same, the difference is only the door frame and the door for the production of steel plate.