Fire doors can be divided into single, double, and multiple fire doors. The double-leaf fire door is not easy to cause congestion when a large number of people are evacuated. As long as the force is applied outwards, it can be easily opened without wasting time.

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.