Ana iya amfani da matakai daban-daban na jiyya na sama don gyara launi na ƙofofin wuta na karfe. Misali, fasahar shafa ta PVC ko fasahar fesa foda ta electrostatic ana iya amfani da ita don shafa saman farantin karfe tare da wani nau’in hatsin itace don nuna dumin kofofin wuta na itace.

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