Ƙirƙirar ƙwallon ƙwallon ƙarfe ana amfani da samfuran bawul a yadu a masana'antu da yawa.Saboda kyakkyawan aikinsa, ana amfani da shi sosai a cikin nau'ikan ruwa daban-daban kamar iska, ruwa, tururi, watsa labarai masu lalata daban-daban, laka, mai, ƙarfe na ruwa da kafofin watsa labarai na rediyo.Amma ka san wanene...
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