Ndị nrụpụta na-eduzi coke petroleum graphitized dị elu nke nwere obere carbon dị ala, nha 1-5mm.
Ụlọ ọrụ mmepụta ihe ozugbo na-ere
Mmepụta zuru oke
Ngwa dị elu
Otu ndị nwere ahụmahụ
Njikwa ịdị mma siri ike
Nnyefe ngwa ngwa
Ọrụ dị mma mgbe erechara ahịa
OJIJI











