The interior of UL fire door is filled with perlite fire door core plate, and the surface treatment is electrostatic polyurethane powder coating. UL fire door hardware standard configuration handle lock/escape push rod (pressure bar) lock, door closer, stainless steel hinge, stainless steel bolt, alignment device, worth mentioning, hardware accessories need to carry UL labels.

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.