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As long as you want, there is nothing you can't do, if you have strong hands-on ability, you can DIY, otherwise you can prepare the silver to find a locksmith or manufacturer.
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Yes, as long as you have strong hands-on ability, you can also ask the manufacturer's master to come to do it for you.
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Yes, you can go to the hardware store or the security door sales store to see the style you like to buy, and there should be a service fee for door-to-door service.
Anti-locking from the inside is to prevent the outside from unlocking. Of course, I don't like the effect inside.
Anti-theft doors are generally locked, ordinary key locks seem to have a high reputation of Wang Li, and it is now the longest anti-technology to open. Of course, the key cannot be copied, it is better to buy a fingerprint lock, your fingerprint is unique.
Summary. The fillers inside the security door mainly include: honeycomb paper, aviation aluminum foil, and perlite slabs. >>>More
If you have a key, you can open it, unless the lock is faulty.
Generally, there is a problem with the bullet inside, it may be displaced, or it needs a professional to reset, and you can't do it without tools.