Longbei is the top product of Changshengchuan. It originated from the royal tribute series. There is a poem: "Chu Yun Wuling Mountain Tea, Seventy-Seven Quenching Imperial Ceremony". As a top product, the texture breakthrough of the entire packaging is the primary problem to be solved. Therefore, we created a brand that is similar to the waist brand in the palace—the dragon brand to reflect the nobleness and texture of the product. In the choice of paper, we chose low-key cloth paper and sandalwood color, which not only reflects the introverted tea as the essence of plants and trees, but also contrasts the nobleness of the dragon brand. In the heyday, such a royal tribute entered into civil life, and it was not exactly "Gong Yu Jiu Zhong, who once left incense in the royal family; Qiankun Wanshou, has been well-known among the people"!