Madaidaicin bututun ƙarfe nau'in nau'in nau'in bututun ƙarfe ne mai tsayi wanda aka sarrafa ta zane mai sanyi ko mirgina mai zafi.Saboda bangon ciki da na waje na madaidaicin bututun ƙarfe ba su da Layer oxide, babu yayyo a ƙarƙashin babban matsin lamba, daidaitaccen madaidaici, babban ƙarewa, babu nakasawa a cikin lanƙwasawa mai sanyi, flaring, lebur ...
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