Wuzhoul Ding Chong (Beijing) Technology Co., Ltd. 

             Tel: 400-6658-386 or 010-87712860 

             Fax: 400-6658-386 Zip 100012 

             E-mail: wzdc@wzdctech.com 

             Website: www.wzdctech.com 

            Chaoyang District, the 15th Rip Red Barracks Road School Building, Room 802