Tel: (+86)10 5823-5305 - 221; Fax: (+86)10 5823-5586
http://www.bjdfhy.com; E-mail: business@ bjdfhy.com
Address: 3-1001, A Building, Ou Lu Jing Dian. Kai Xuan Cheng.
Beiyuan Road 170#, Chaoyang District, Beijing, China; PC.: 100101
Copyright: Beijing Dong Fang Heng Yuan Technology Development Co.,Ltd.