Where is the lock and key of the security door matched

Look at what your keys look like.

There is no place to get the key to the new security door. >>>More

Then you'd better change the lock, so that it is a kind of protection for both parties.

Hello! You are right in your doubts. If you don't trust the person who has access to your keys, it is recommended that you change the cylinder. Getting a new cylinder will also dispel your doubts, so you don't have to worry about it.

The security door is generally bought in the building materials market, and I don't know which region you are, so I can't say it in such detail. Good security door brands are as follows: 1. Beiyi (China's well-known anti-theft door brand, Beijing Qunsheng Beiyi Door Industry Co., Ltd.) 2. Panpan (China Famous Trademark, China Famous Brand, High-tech Enterprise, Joint-stock Enterprise Dominated by the Development and Manufacturing of New Building Materials, Liaoning Panpan Anju Co., Ltd.) 3. Qunsheng (In 1989, China Famous Trademark, Zhejiang Famous Brand, Large Housing Supplier, One of the Drafting Units of National Environmental Protection Standards for the Door Industry, China Qunsheng Group Co., Ltd.)

If you don't worry about finding an agent in Buyang, if you can, find a market that doesn't know you, and it's easy to match a key.