+86-10-64278408

 

Rm.301, No.1 Bldg, Jia No.26 Zhanglanguan Road, Xicheng District, 100037, Beijing, China.

 

+86-10-88374594

 

luozheng@yahoo.com, zzfts@public3.bta.net.cn

 

 

 

 

 

 

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