The company is a traditional processing technology protection unit of Yunnan Pu 'er tea.
Dayi Company in Yunnan is the protection unit of Pu 'er tea cooked tea production technology, so buy some cheaper cooked tea for Dayi.
Yunnan Yi Wu Zhengshan Tea Co., Ltd. is a technical protection unit for raw Pu 'er tea production. Buy good tea and go to Zhengshan, Yiwu.