Fire doors are classified according to materials and can be divided into: wooden fire doors, steel fire doors, steel wood fire doors, and other materials fire doors. The fire door is smoke-proof when closed.

ZHTdoors fire doors, 31 years of production experience in fire doors and Windows. The main UL fire doors, EN fire doors,  BS EN fire doors, etc.,.We have certification.ZHTdoors support OEM and free design.Our advantages:good quality, factory price, good service.Welcome to consult us.