Carbon rod is non-metallic product, it has high temperature resistance, good electrical conductivity, not easy to break properties, suitable for cutting metal into the required shape. Because of the high temperature of the carbon rod, it is easy to conduct electricity and has good chemical stability. It has been widely used in national defense, machinery, metallurgy, chemical industry, casting, non-ferrous alloy, lightening and other fields, especially black carbon rod, also used in ceramics, semiconductors, medicine, environmental protection, laboratory analysis and other fields, has become the most widely used non-metallic materials.