contact : Robben Han , Macros Zhang

Phone number : 13213283799   13213263322

Fax : 0086-372-2190333

E-mail : info@bidragon.com   robben@bidragon.com

Skype : hwbzzm   bidragon2012

Address : No.2-1803 Soubao Business Center, No.16 South-West Third Ring Road, Beijing,China.