Set the original intention Functions and functions of fire doors Fire doors are an important part of fire partitions and fire intervals in buildings. Can effectively prevent the fire from spreading, Flue gas diffusion; At the same time, it is ...

Fire door monitor: used to display and control the opening of fire doors, Control device for closed state Fire door linkage door closer: can be handled after receiving instructionsClose the fire door in the open state and reverse its status informat...