The reason why wooden fire doors can prevent fire and smoke is mainly because of the role of refractory materials used in fire doors. The wooden fire door is made of flame-retardant wood products as the door frame, door leaf frame, door leaf panel, and the door leaf is filled with non-toxic, harmless, energy-saving and environmentally friendly fire-proof and heat-insulating materials, and is composed of fire-proof hardware accessories and fire-proof glass, which can meet certain requirements. fire resistance.