graphite electrode with grade RP, RPI, HP, UHP used for arc furnaces Graphite Electrodes:-grade:RP, RPI(HD), HP, UHP-dia. 75-600mm; length ... oxidation,heat shock & impact-competitve prices-excellent serviceThey are widely used in the steel plants and other area such as electric ... with customer’s requirements. Graphite Electrodes with grade RP RPI HP UHP