The surface treatment process of steel fire doors is more diverse. Besides, steel fire doors can be filled with a variety of fireproof materials, which have good fire and smoke prevention capabilities, as well as sound insulation, and are more suitable for schools, hospitals and other places that are very sensitive to noise.

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.