The keys in the key box are placed in an orderly manner

 Rows of nails can be nailed neatly in the key box. The room numbers are written on the top of the nails in order, just like the seats in a movie theater. The keys are seated according to the number and hung on the nails. Even if the power goes out, you can feel it and find it.

  If there is a large amount of keys, there is usually a key cabinet for storage. The key cabinets are divided into push-pull key cabinets (built-in three-layer sliding version), flat start key cabinets (built-in multi-layer flat panels), and smart key cabinets. For mechanical key cabinets, you can write the corresponding key information on each key plate and program the number. According to the different parts and regions, each key-hanging board is classified, so that if you store it, you can quickly find the key when you are looking for it.

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