UL steel fireproof door is made of steel frame, door leaf frame and door leaf panel. If the door leaf is filled with materials, it is filled with fire and heat insulation materials that are harmless to human body. The utility model relates to a fireproof door with a certain fire resistance, which is composed of fireproof hardware fittings.

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.