Ƙofar ƙofar wuta ta ƙarfe yana da girma sosai, za a yi amfani da firam ɗin ƙofar da ƙyallen ƙofa don yin amfani da kayan kariya na wuta don aiwatar da ƙarin cikawa, ƙofar wuta ta ƙarfe ba zata iya cimma ainihin tasirin keɓance yaduwar hayaki ba, har ma zai iya cimma kyakkyawan sakamako. tasirin rufin sauti.

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