Ana iya ba da ƙofar ƙarfe mai hana wuta da taga, rufewa, rufewar iska, da sauransu kamar yadda ake buƙata. Dangane da juriya daban-daban na ƙofofin wuta na ƙarfe, juriyar wutar su za a iya kasu kashi uku: A, B da C.

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