Nkọwa dị mkpirikpi:

Ihe mgbochi carbon anode na-ezo aka na ngọngọ carbon, nke a na-emepụta ya na mmanụ ala coke na pitch coke dị ka nchịkọta na coal tar pitch dị ka ihe nkedo, nke a na-eji dị ka ihe anode maka cell aluminum electrolytic cell pre-baked. Ụdị ngọngọ carbon a agbachaala ma nwee geometry kwụsiri ike. Ya mere, a na-akpọkwa ya ihe mgbochi carbon anode a na-emebu, a na-akpọkwa ya carbon anode maka aluminum electrolysis.