Book is an item used to support books that have achieved a smooth standing effect. It can be seen at home and in the office. The books are mostly made of iron, stainless steel, plastics, etc. They are designed in an "L" shape and appear in pairs.
There are many functions in the book, which can not only avoid the consequences of the folding, bending or damage of a book caused by a staggered book. The book can also be used to sort out different types of books, save space, and make books neat and orderly. Most of the libraries use books to organize the shelves with gaps. Companies and individuals can also use the books to set up a neat book space on a flat desk.
The principle of the force of the book is that the book has a downward pressure on the book, and the book has an upward support for the book, and the two forces are interaction forces. There is also a mutual pressure between the book and the desktop. Books are usually paired, because when you use them, you need a book holder on both sides to maintain balance. In special cases, for example, when leaning against a wall, the wall can be used as a side, while the other end can be used with only one book. If there is only one book that can't stand against the wall, put a row of books between the bookshelf and the book stand. On the side of a row of books, you can put a few more large books. The other side of the book can still be placed against it. A few books.
The size of the book can be made into 6 inches, 7 inches, 9 inches and so on. The brand of Shuli is beneficial and high, Chenguang, Kushiro, Shude, Deli, Qixin, Oushimei, Jielisi, the type of book can be divided into library-specific iron book, household iron book, high-quality electrolytic film Books and so on. The special iron book for the library has a tough appearance, more books, more stability, and is not easily deformed for long-term use. The household type iron book is thick and solid, with high vertical strength, solid and stable, and high-quality painting technology. High-quality electrolytic sheet manufacturing, strong wear resistance and no deformation. The style of the book can be made into a connected book, a combination of books, and a multi-layered book. The colors are mainly black, blue and gray, and of course other colors can be made. Japanese designers have also designed a very cute book.
Because the bookcase is not very convenient to use, it is difficult to move, and the book stand can be placed at will, and the size can be freely controlled. Therefore, it is very popular among all, and many families have begun to recommend everyone to use the book instead of the bookcase. . And because the books are more durable and cheaper, the market is very broad now and in the future.
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