BeiJing SSDM Enterprise Management Consulting Co., Ltd. , 

        Address：Building 2, Room 304  Zhongguancun international business park,No. 1,XinXi Road, Haidian District, Beijing

        TEL：13311127555

        Q   Q：1496842870

        ZipCode：100084

        Emall：frank.he@bjssdm.com

        Web：www.bjssdm.com