In addition to the functions of ordinary doors, fire doors also have special functions of fire prevention, smoke separation, fire suppression and evacuation protection. The fire door can only meet the requirements of fire integrity within the specified fire resistance time, and the fire integrity levels are 1.0h, 1.5h, 2.0h and 3.0h respectively.

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.