... service such as catalog, booklet, flyer, brochure,paper bag, book, hardcover book, softcover book, folder, paper Display. Specification: 1)paper ... , sewing binding, perfect binding, flexi-bound binding, Saddle stitch binding, wiro-binding(y-o binding), Spiral binding, glue binding, pad binding. ... . We do not sell books, but provide printing service. spiral bound school notebook printing OEM service