We can make Y-O book from thin to thick. The Y-O book includes two kinds, wire-o book and spiral book, the wire-o book could be finished with the machine, and the spiral book could be finished with the handwork. Generally, the cover is printed with the 300g~400g S/S art paper, and the text is printed with 80g-140g paper. The Y-O book is very convenient for reading and taking note.
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