Products
CONTACT US

Tel: +86-10-62117689

Address:

12 Zhongguancun South Street, Haidian Distrcit, Beijing, 100081 China


HomeAbout ChallengeProductsOur factoriesR&D centerContact us

©2013 Challenge Group Copyright Email: marketing@challenge.com.cn Tel: 0086 10 62117689

ICP:14003909 Support:Powered by Hichina