Jiujiang hantang Photoelectricity transmission technology Co., Ltd is a high-tech enterprise in electrical slip rings and slip ring components research, design and manufacturing. At present there are mainly precision machinery manufacturing, electrical contact materials and electrochemical three professional research fields. We own fine chemical plating laboratory, ratio of slip ring friction pair laboratory and slip ring mirror surface cutting laboratory, and because of this we become a research manufacture enterprise which supporting the most completes facilities for electrical slip ring core technology in China. Mainly support the core of technical and core components for high-end slip ring manufacturing enterprises. Meanwhile provide the market with high-end slip ring's research and design. Long life slip ring is our company's main research direction.