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Anonymous users2024-01-23The entrance door is used for the security door, and the door is divided into the door with a fire door. There is no difference between floors!
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No problem. The key is that the hallway is not too long and the light is not too dark.
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The fire door required by the design of the high-rise commercial building is only installed with a door closer, and cannot be locked, so there is no anti-theft function.
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Not necessarily, now the fire door will be written, you can see which brand you are in, and then check whether the model of your home is a fire door.
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Fire doors are mainly installed by developers, and they are still security doors. >>>More
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The gate is burglar-proof, and the door inside is generally a fireproof door.