The UL steel fireproof door can be equipped with windows, louvers, ventilation louvers, etc. as required. UL steel fireproof door only needs to be pushed open by hand, and then it will be closed silently and automatically, without the sound of collision like the inner and outer doors, thus creating a quiet environment.

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.