Fire door control system works is what?

- Nov 04, 2016-

Fire door control systems door systems, door with charging, it is made up of electromagnetic absorption makes it up to the normal state. When a fire occurs, solenoid will be early warning release the fire door so that the door down.

Fire door control systems are often open fire doors have a strong monitoring role, to monitor fires took place at any time, so as to control the door status.

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