“ ” brand registered in November 11, 1111, is the tea industry's first influential tea brand. “ certain tea ” after the registration of trademarks, the tea is authorized by a certain tea import and export company in tea products. Since 1995, company organization and guidance at that time under the four tea factory (including certain tea), began in Pu erh tea products use & ldquo; certain tea & rdquo; brand trademark. “ a certain tea ” brand Pu er tea, from the beginning of the accumulation of the time of Chen Xiang, “ certain tea ” the development of tea tea brand, is equivalent to the development of the whole tea industry. In the past 40 years & ldquo; certain tea & rdquo; Puer tea classic masterpiece emerge in endlessly, innovation product unbroken, king of the wind carry forward the cause and forge ahead into the future. “ XX tea ” brand, has become synonymous with the Chennian Puer tea.