At present, the electric carbon brushes produced here are mainly used in auto, railway electric locomotives, motorcycle, airplane , electric-bike, electric tools and many other fields. There are carbon brush factories in Renqiu since the 1970s. Through these years, these factories have developed and grow to larger scales. In recent years Renqiu's manufacture of carbon brush have developed at a very fast speed, having more than 10 big-scale factories specifying in producing carbon brushes now. We have the modernized workshop and large modernized equipment imported from Japan, almost every factory having the ability of annual output of over hundred million carbon brushes, coming into being the producing base of carbon brush.
