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  1. Beijing Dacheng Biotechnology Co., Ltd.
    Address:Area A, Building 13, Liandong U Valley, Xinggu Development Zone, Pinggu District, 101200 Beijing,China
    Tel:+86-15321900781 (English)
    E-mail:zhengchanglong@dachengbio.cn; yz@dachengbio.cn
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