The lock of the security door is always difficult to open

Updated on Security door 2024-07-31
2 answers
  1. Anonymous users2024-01-24

    What a nice security door

    Check to see if there is any debris in the lock cylinder, or if the lock cylinder does not match the key. It really doesn't work, just change the lock cylinder

  2. Anonymous users2024-01-23

    I have a Wanjia security door, I have been using it for several years, when I bought it, it was very cheap, I thought it was not long to use, and now it is still very good, I am very satisfied, very good.

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