Shin ka taɓa yin mamakin bayan rarar masana'antunmu na zamani, inda ƙarfin da rabon kayan da suke da mahimmanci? Da kyau, lokaci ya yi da za a bincika cikin duniyar ƙarfe, musamman 4130 karfe. Waɗannan bambance-bambancen ƙarfe guda biyu ba kawai kowane ƙarfe na yau da kullun bane; Su ne-ƙarfi, ƙananan ƙananan ƙarfe suna bikin don tauri da kuma juriya. Amma a nan ne twwing - yayin da suke raba wasu kamanceceniya, sun bambanta sosai a tsarin, kaddarorin, da aikace-aikace. Wannan labarin shine jagorar ku don haɗawa da waɗannan bambance-bambance, kuma na yi alkawari, zai iya tafiya tafiya mai faɗi!
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