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Haidian District, Beijing, China (Postcode:100098)

 8610-62166727

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 http://www.chsi.com.cn  or  http://www.chsi.cn

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 Baiyan Building, NO.238 Beisihuan Zhonglu, Haidian District, Beijing, P.R.China (Postcode:100191)

 8610-61139123

 8610-61139120

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