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Beijing?Meizheng?Bio-Tech?Co., Ltd.

Tel：+86-10-81197003

Web：en.meizhengbio.com

Zip：102101

Mail：sales@meizhenggroup.com

Add：No. 2 Building, No. 8 Courtyard, Fenggusilu Road, Yanqing District, (Zhongguancun Yanqing Science Park), Beijing, China

Shandong Meizheng Bio-Tech Co., Ltd.

Tel：+86-63-36117666

Zip：276800

Add： No. 69 Zhaoyang North Road, High-tech Zone, Rizhao, Shandong Province. P.R. China.