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Du Zhizheng won the 2009 Chinese Medicine Outstanding Contribution Award Certificate

Du Zhizheng won the 2009 Chinese Medicine Outstanding Contribution Award Certificate

Du Zhizheng won the Bronze Award at the 1988 Beijing International Invention Exhibition

Du Zhizheng won the Bronze Award at the 1988 Beijing International Invention Exhibition

Du Zhizheng won the 2009 Chinese Medicine Outstanding Contribution Award

Du Zhizheng won the 2009 Chinese Medicine Outstanding Contribution Award

2009 China Patent Special Gold Trophy

2009 China Patent Special Gold Trophy