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You can drill the hole but you can't tighten the screws, and if you pull it with a cap puller, it will be very firm, and the effect is the same as screwing.
Anti-theft doors, of course, are not soundproof.
The internal structure of the acoustic panel is quite complex, a bit like a sponge. It's just that there are more suction holes to absorb volume. So you get the idea. What is the structure of iron? >>>More
The composite door installation method is the same as the general security door. >>>More
Of course, it breaks fast when you use it often, so use a fingerprint password lock instead, domestic brands are cheaper, such as Kaiyunxin, you can learn about it.
It could be that the lock is stuck in the door, so find a plier or a wrench and loosen the door a little bit.
What can be seen is only very deformed, and it needs to be corrected before the normal angle of view can be produced.