Do you know that Mr. Dayu Chuan is very valuable? Because Mr. Da Yuchuan's twelve pieces are a set of tea sets used by officials and nobles in the Song Dynasty, and their names are taken from the poet Lu Tong in the Tang Dynasty. Song people like to drink tea, so they are named after tea sets and given official positions according to the official system of Song Dynasty. The official positions of these twelve gentlemen are: "Wei, Mu, Blonde Grass, Stone Transfer, Hu Yuanwai, Luo Shumi, Zong Zhan, Secret Pavilion, Tao, Tang Tidian, Deputy Governor Zhu and Secretary."