... delviery time enjoy good reputation. ParameterUnitREGULAR POWER (RP)HIGH POWER (HP)ULTRA HIGH POWER (UHP)150-400MM450-500MM150-400MM450-600MM300-400MM450 ... ,51,41,51,4Ash%(max)0,300,300,250,250,200,20ShengSa carbon advantage:• Strictly control of raw material ensures it ... stock in seaports to ensure competitive price&fast delivery; RP/HP/ UHP Graphite Electrode Dia.200-600mm