There are various anti-counterfeiting technologies.

Mainly code anti-counterfeiting, fluorescent ink, dripping and baking disappear.

The other is to use some unique materials and so on.

If it is code anti-counterfeiting, we must first know whether there is an anti-counterfeiting label on the book.

What is the telephone number for anti-counterfeiting inquiry?

See if the printing is rough.

The above answers were provided by Zhang Delong and Beijing Kaixun Shang Hui Anti-counterfeiting Technology Co., Ltd.

If there is information in the space, ask me if you don't understand it.