Ho sebelisa tšepe e tloaelehileng ea carbon le tšepe ea manganese, ho tsamaea ka mabili a mane ho bonolo, sebaka sa mosebetsi se pharaletseng, matla a ho jara a matla, 'me batho ba bangata ba ka sebetsa ka nako e le' ngoe, ho etsa hore mosebetsi o phahameng o bolokehe le ho sebetsa hantle, o loketse libaka tsa kaho, lithupelo, matlo a polokelo, liteishene, boema-kepe , liteishene tsa khase, mabala a lipapali le tse ling tsa ho kenya lisebelisoa tse phahameng, tlhokomelo, ho hloekisa, joalo-joalo.