Add:Room502,Unit West,Building4,Distriction one,

Fangchengyuan,Fangzhuang,Fengtai Distriction,100078, Beijing, P.C. China.

post code ：100078

Tel:010-67687723 13910402708

Fax:010-67687723

E-mail:sunhope999@163.com 

Add:Room 602, Unit No.2, Eastern Section Phase 1, Taiyuyuan Neighborhood, Zhangwan Town, Tongzhou District, Beijing

post code ：101113

Tel：010－61569192，61566152，13699112088

Fax：010－61566152

Http://www.holography-cn.com        www.y-com.cn(the company's website)     

E-mail:holography2008@hotmail.com sunhope@163.com