4464,zhongguangcun

Huatong Speedyfiber technology,.Ltd is an advanced technology company of research and development, production of optical fiber cable, optical communication networks, cabling products and other high-te...

East Yanjiao

Beijing Demeix Technology Co,.Ltd was founded in 2009, the company is located in the national-level high-tech science and technology business incubators Yanjiao entrepreneurship center building. Beiji...