Ana iya raba farashin ƙofofin wuta zuwa matakan juriya na wuta, waɗanda sune Grade A, Grade B da Grade C bi da bi. Kuma ƙofar wuta tana da bayanan martaba iri-iri. Ƙofar wuta ta ƙarfe yana da ɗan tsada fiye da ƙofar wuta na katako.

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