China HP 250mm Graphite Electrode suppliers Our History Jiexiu Jinsheng Carbon Co., Ltd. was established in August 2001, which was transformed from four carbon factories of China Railway 12th Bureau. It is located in the famous Mianshan scenic spot, covering an area of more than 60 mu. It is a private enterprise growing up in the wave of China's reform and opening up. The company specializes in scientific research and development, production and sales website:http://www.graphite-electrode-products.com/ website2:http://www.jinshenggraphiteelectrode.com/