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  • Shanghai Siwei Chemical Co., Ltd is located in Shanghai,China .Our main business is Pharmaceutical Intermediates ,OLED Intermediates ,Food Additives and Ingredients etc.

    We have professional customer service 24H online answer your questions .
    Have long-term and stable cooperation with major factories and universities to ensure?the best quality and?cheap price .

    Familiar with Chinese market so we could also help customer do the sourcing work .

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