Shijiazhuang LONGDAFU Biologic Pharmaceutical Company,established in 1993, is specialized in research and production of raw drug-oyster shell calcium and foodadditive-activated calcium. LONGDAFU has advanced technology and equipments, and has products with steady quality. In 2004, Hebei Institute For Drug Control was entrusted by State Food and Drug Administration drafted out national oyster shell calcium quality standard [WS-10001-(HD-1034)-2002] based on the product sample and technology docum...
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