Why is the door filled with white powder, the property said it was an anti theft door, it s okay, I

Updated on Security door 2024-04-03
2 answers
  1. Anonymous users2024-01-23

    Your home should be an elevation residence, and there are fire protection requirements should be white perlite powder inside the security door. Personally, I feel that the security door will be used for more than 3 years, and there will often be a little white powder at the door, which is very annoying, and the sound insulation effect is not good! It is recommended to buy a rock wool filled security door in the future!

  2. Anonymous users2024-01-22

    The doors of the new house are all going to be replaced, and the quality is not good.

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