Semi GPC (SGPC) inobva kune insulation layer ye acheson furnace.Tembiricha yegraphitization iri mukati me1700-2500ºC. Iyo ndeye themedium tembiricha graphitization chigadzirwa. Iyo yehupfumi recarburizer ine yakakwira yakagadziriswa kabhoni, yakaderera sarufa yemukati, kukurumidza kunyungudika mwero uye yakanyanya kunyudzwa mwero.
