Hana ʻia kēia ʻano electrode graphite me ka coke petroleum.Ua ʻae ʻia e lawe i ka nui o kēia manawa ma lalo o 12~14A/㎡.ʻO ka maʻamau, hoʻohana ʻia ia i ka umu ahi uila uila no ka hana kila, hana silika, hana phosphorus melemele etc.