... 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 ... and other area such as electric arc furnace. Alloy furnace and calcium carbide furnace and other metallurgical furnace.Specifications: GradeItemsRegularRPImpregnatedRPI ( HD )HPUHPMale- ...