Graphite Electrode 1.Grade:RP,HP,UHP(ISO9001) 2.Dia:150-600mm, Length1800mm 3.4TPI,3TPI, long ... PropertiesRP Grade(Dia.75-600mm)HP Grade(Dia.150-600mm)UHP Grade(Dia.200-600mm)Electrical Resistance (max) μΩ-mElectrode8.07.06 ... , just be free to contact me,please! Thanks! RP, HP, UHP Graphite Electrode Dia.150-500mm