The key is printed with WJ is the trademark of the lock or the trademark of the security door

Updated on Security door 2024-08-26
2 answers
  1. Anonymous users2024-01-24

    It is a common trademark of locks and security doors.

  2. Anonymous users2024-01-23

    Generally, the big brand of anti-theft door factories can develop and produce locks, so that the general locks and anti-theft doors are a brand. Ordinary general security door brands do not produce locks, and they are also the factory directors who purchase locks that specialize in the production of locks.

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