Tsarin karfe na ƙofar wuta na karfe na iya tabbatar da cewa ba shi da sauƙi don yin karo da lalacewa, kuma ba shi da sauƙi don lalacewa ta hanyar dakarun waje, kuma ana iya amfani da shi akai-akai na dogon lokaci ba tare da maye gurbinsa ba. A karkashin yanayin tabbatar da tasirin wutar lantarki, ƙofar wuta na karfe yana da halaye na kare muhalli da dorewa.

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