There's a Yong pin number in that tea book.

"Yong Pino." It's an old name in Yiwu. In the book Pu 'er Tea written by Mr. Deng Shihai, the name is Yongpin. Be introduced and appreciated in detail.

The long history of tea industry in China has created tea science and technology for human beings, and also accumulated the richest historical documents of tea industry for the world. In the vast number of cultural classics, there are not only books devoted to tea, but also a lot of contents about tea, tea history, tea making methods and tea making techniques in historical records, local chronicles, notes, miscellaneous examinations and ancient books.