The lock cylinder of the anti theft door of the commercial house is of good quality. When the key ro

Updated on Security door 2024-03-05
1 answers
  1. Anonymous users2024-01-23

    Once or twice it will not be broken, because you pull out the key a little, resulting in the key is not in place will cause Fan card, after you lock the door remember that the key should be locked in place, so that it is easy to lock it, if it is still a fan card, you can use pencil foam or graphite powder to lubricate the key and lock cylinder.

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