Yonghe security door lock cylinder is not working, what to do when the door is good or bad Please po

Updated on Security door 2024-09-16
3 answers
  1. Anonymous users2024-01-24

    Let's take a look at the sewing machine oil first, small hardware stores have it, 1 yuan bottle. If it still doesn't work, it is recommended to change it.

    Learn about the relevant knowledge first, so that you can have a standard when choosing. It is recommended to search for two videos on Youku and take a look first. One is a master key that cannot be "locked". The other is that the tin foil unlocking technology is too terrifying, so let's change the lock quickly.

    If you want to know more about the relevant knowledge and suggestions for changing locks, you can contact the owner of Taobao Railway Workers' Home to see what advice he can give you. You don't have to buy their products, just ask.

    Hope it helps.

  2. Anonymous users2024-01-23

    It is recommended to replace the lock cylinder. If you want to find a good anti-theft lock cylinder, it is recommended that you take a look at CEI's invincible colorful lock cylinder, CEI's colorful lock cylinder has passed the super B level test and the European Union's CE certification! The anti-drilling time is over 30 minutes, and the anti-technical opening is over 270 minutes, and the anti-theft performance is very good, so you will know it at once!

  3. Anonymous users2024-01-22

    Try dropping a little lube.

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