Our company, hereafter refer to DF, was established in September 2006, is located in the Zheijiang Provincial Science and Technology Town, Qingshan Industries Zone, enjoys the excellent transportation. Since DF inception, our vision is to be the world first brand in the cable industry; our mission is to provide the clearest video products for all the people in the world. So, DF has introduced and absorbed various advanced equipment and technology from domestic and foreign cable counterparts ...