- 29
- Feb
emergency glass door,EN emergency exit door alarm,emergency exit door for commercial buildings
In addition to the function of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke, which can prevent the spread of fire within a certain period of time and ensure the evacuation of people. The current fire protection code does not mandate the opening and closing method of fire doors, which can be selected and determined comprehensively considering the use occasion and the management needs of users.
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