The fire protection time of fire doors is 60/90/120min. Fire doors are usually divided into wooden fire doors, steel fire doors, stainless steel fire doors, fire glass doors and fire entrance doors, whether they are wood, steel or other materials. There are three grades, A, B, and C.

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.