Sound insulation can be 32db for aluminum entrance door.
Now more and more people in the decoration of the time, usually choose broken bridge aluminum alloy doors and windows.
General broken bridge aluminum alloy doors and windows custom process, need to tell the manufacturer of detailed data.
If it is not clear that professional personnel will be sent to the home actual measurement, so that the lock to make aluminium front doors for homes more in line with the whole frame, and the doors and windows of sealing, wind resistance, waterproof sound insulation, fire prevention, anti-theft and other performance is very good, the key is that its service life is still very long.
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