Isi nkọwa nke graphite mmanụ ala coke bụ ndị a: mmiri ọdịnaya n'okpuru 0,5%, sọlfọ n'okpuru 0.05%, phosphorus n'etiti 0.04-0.01, hydrogen nitrogen n'okpuru 100% ppm. elu carbon ọdịnaya nke urughuru size bụ agafeghị oke, porosity ga-dịtụ nnukwu, absorption ọsọ bụ ngwa ngwa, na chemical mejupụtara bụ dịtụ ọcha, absorption ọnụego ga-adị elu. urughuru size 0-5mm, 1-5mm, 0-10mm, wdg, nwere ike esichara dị ka ndị ahịa chọrọ.
