Where can I seal the package?

Standardize the formal plastic packaging of books, which can be used in general copy shops and photo studios. If the requirements are not very strict, we can also make them at home. In the past, when we were young, we used to make book covers for our schoolbags, but we had to change the cardboard into plastic packaging materials and cut the appropriate size according to the size of the books. As long as we put our heart into it, we can be perfect, that is, we need to make some efforts.