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Address: #610, Yanqiao Mansion, 89 Yanling Road, Tianhe District, Guangzhou Postcode: 510507 Telphoe: 86-020-87791356 Mobile: Fax: 86-020-87791381 Website: www.dongshengbio.com/en E-mail: dongshengbio3@hotmail.com Contact: Sue Huang