Is it expensive to buy an anti theft door in Qingta?

What kind of security door are you going to buy, there are many kinds, such as RF, or acoustic-magnetic.

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Anti-theft door security anti-theft fire door galvanized sheet a price of more than 1750 yuan.

This needs to see what materials are used and what process is used, the materials are 201 and 304, there are thick and thin, the process has single-tube welding and whole plate bending, in addition to decorative flowers, etc., generally 201 materials are cheaper, 0 4 and 0 6 prices are generally 20 30 yuan, 304 and 201 prices are also different, but generally more expensive 180 About 200 yuan per square bar, for example, 201 single tube welding only costs 400 yuan per square meter, 304 full plate welding costs 580 yuan per square meter, 739 with the same thickness is the material and process are different.

The key and core of the security door are matched. You can't buy it, you can only copy it with the original key.