Kei te whakamahia nuitia te coke petroleum graphite i roto i te umanga. Kei te whakamahia te reira rite te kaihoko carburizing i metallurgy, makanga me te makanga pū. Ka whakamahia ki te hanga i te wera nui mo te whakarewa, te hinu mo te ahumahi miihini, te hanga te hiko me te pene pene; Ka whakamahia nuitia i roto i te ahumahi whakarewa o te reanga teitei me te paninga, te whakapumau i nga rawa ahi a te hoia, te arai pene peera marama, te paraihe waro ahumahi hiko, te hiko hiko hiko, te whakakorikori ahumahi tongi matū, etc.
