Thank you for your attention. 
If you have business needs, please call our customer service hotline. 
You can contact us by mail at the following address. 
Address: no. 706, Block B, Great Center, 5 Huizhong Road, Chaoyang District, Beijing. 
Contact: 010-51238430. 
Fax: 010-51238433. 
E-mail: info@sangaopatent.com