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It can be called that, the factory has to be called the building intercom door, which is visible and non-visible.
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Unit building doors are generally electrically controlled security doors.
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What kind of security door to use, not to look at the time, but to see which community.
Irrelevant. Embossing is only a decorative process and has nothing to do with anti-theft performance. Anti-theft should be mainly in the lock design. No one entered by smashing the door panels.
It won't break easily, and if so, it must not be a good quality bargain or a fake.
There are fire doors that integrate fire prevention and anti-theft, and now they are all integrating various functions.
Jingjing security door is a series of Panpan security doors in the early years, but it has now been discontinued. It is no longer produced. Look carefully when you buy it!
It's good to do it yourself and find someone to help you see the construction site, so that you can transfer a lot of money, and you can only get a small part of it when you transfer it to others.