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      About Tonzo

      About Tonzo

      • Introduction
      • Culture
      • Events
      • History
      • Honors
      • Social Responsibilities

      Enterprise of Credit

      2017-06-22

      In March, 2017, Tongzheng was granted with the title of “Zhejiang industrial and commercial A-level Enterprise of Credit”. As always, Tongzheng’s integrity management has been recognized by the society and consumers.


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