There are 4 types of fire door locks. 1. Fireproof lock: there are lock body, lock cylinder, fireproof handle and key. 2. Fire passage lock: generally use the passage of the stairwell. 3. Tube well lock: used for fire doors in shafts and tube wells. 4. Push rod lock: If there is an escape channel, if you need to escape, an escape lock should be installed. You can consult us about the functional characteristics of fire door locks.

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.