graphite electrode with grade RP, RPI, HP, UHP used for arc furnaces Graphite Electrodes:-grade:RP, RPI(HD), HP, UHP-dia. 75-600mm; length:500-2700mm;-nipple: 3TPI, 4TPI, 4TPI long;-high conductivity-high bulk density-low electrical resistance-low ash-good resistant of oxidation,heat shock & impact-competitve prices-excellent serviceThey are widely used in the steel plants and other area such as ...