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Substitute for Book is designed for the fetching and placing the books, which brings much convenient for the administration of them. It follows the simple and humanized principle.
Wherever you are in the library, bookstore, reading rooms or family bookshelves, it is always inconvenient for you to fetch and place the books.When you take a book, either a line of them will fall or they will fall on the floor. When you put it back, you have to pick up the heavy books, which brings about big trouble to librarians and readers, as well as some invisible damage to books.
Wang Liduan, Duan Shengfeng
Zhou Junjie, Yang Enju, Wu Qiang