The surface of the steel fireproof door is treated by electrostatic spraying, and the vulnerable parts such as hinges, door locks, door closers are all high-quality hardware accessories. The switches are light and durable. Only Class A steel fire doors can meet UL standards.

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.