The steel heat insulation fire door is a door which can be fire-resistant, heat-insulating and smoke isolating in a certain period of time and is composed of stainless steel and other materials with flame retardant treatment. The steel insulated fireproof door can be set in the fire compartment, evacuation staircase, vertical shaft and other escape positions.

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.