The biggest function of the fire door lock is anti-theft. While anti-theft, it can also enter and exit freely, providing 24-hour uninterrupted security protection.

https://ztfiredoor.com/22442.html

silicone rubber seal strip for fire door,fire door hardware,fire rated door core,fire door hardware accessories,rubber seal for fire door,fire door core,silicone rubber seal strip for fire door,fire rate door lock,fire rated door core,rubber seal for fire door,fire door painc bar,silicone rubber seal strip for fire door,fire rated door binder,fire rated door core,fire door holder,rubber seal for fire door