Shao Yunru (1879- 1930), also known as Beiyan, was a famous painter and calligrapher in Yixing at that time. At the same time, he is also in charge of the pottery industry, and his lettering is quite popular. From him, a special type of pottery sculpture-Mr. Engraving was formed in the purple sand world.

Wu Yungen (1892-1969), male, 1892, from He Qiao, Yixing. /kloc-at the age of 0/4, he studied under the king (Wang). 1956 was hired as "technical counselor" of Zisha by Jiangsu Provincial People's Government and became one of the famous "Seven Famous Zisha Masters".

Both of them worked for Jinding trademark.

Note: Jinding trademark is a famous trademark of Wu Desheng Ceramic Firm during the Republic of China, which is composed of Wu Desheng. Standing orders include Cheng Shouzhen, Wu Yungen, Wang Baogen and Pei Shimin. In particular, there are Chen Boting, Shao Yunru, Ren Ganting, etc.

According to these historical data, it is speculated that the two belong to the relationship of colleagues, one is making a pot, and the other is engraving on the pot, which is very likely to have cooperated.