1.Regular Power(RP), 2.High Power(HP), 3.Super High Power(SHP), 4.Ultra High Power(UHP) ... products are graphite electrodes, including Regular Power(RP),High Power(HP),Super High Power(SHP),and Ultra High Power(UHP) are ... : 1.3ALLOWABLE CURRENT:Nominal Diametre(mm)Allowable current: Unit:ARP HP UHP751000~1400 1300~20001001500~2400 1800~30001302200~3400 2800~42001503000 ...