The general size of the file box for Party building materials is 33*25cm, but because the back of the file box is different, the back of the file box is 5.5cm, and the company name and LOGO need special design and production. The application classification of file boxes mainly includes the following seven categories: file boxes, science and technology file boxes, personnel file boxes, party building data file boxes, accounting file boxes, photo file boxes, CD file boxes and physical file boxes.

Kraft paper file box is a common file box type in file binding management. The file box is an accessory for sorting, binding and storing documents by the file management departments of various organs and units. It is usually made of cardboard and kraft paper, but now it is basically made of acid-free paper. Because the acid-free paper adopts the international AKD neutral sizing technology and has no acid corrosion, the document can be preserved for a long time and will not fade.