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Beijing bainiannuan sci.&tec. co., ltd

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Address: Room 2213,Buliding 2,NO.11 Yingbingnan Road,Huairou District Beijing Postcode: Telphoe: +86-10-51765162, 51765262 Mobile: +86-13240490036 Fax: +86-10-51765262 Website: www.bdnchem.com E-mail: sales@bdnchem.com Contact: Ms.Meng