- Inside pages: printing of fine lines with an iridescent colour effect, printing with invisible fluorescent ink, page numbers printed in both visible and invisible ink and perforated numbering of inside pages.
- 内页：用隐性荧光墨印制，具有闪光效果的细条纹图案，用可见和隐性两种墨印制页码，内页打孔编号。