Ƙofar da ke hana wuta ta ƙarfe shine firam ɗin kofa, firam ɗin leaf ɗin kofa da bangon ganyen kofa da aka yi da kayan ƙarfe. Ƙofar ƙarfe mai hana wuta yana da kyau a cikin aiki kuma yana amfani da kayan aiki masu kyau, don haka inganta kwanciyar hankali da aikin kimiyya a cikin tsarin amfani.

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