An kirkirce shi don fayin kogin tubu na copper don kuskure da canzawa, wannan kayan ayyukan kogin da aka kirkirce ta hanyar iya kuskure, aman dacewa da inganci, da kuma ingancin tsawon aiki na radiator—ta hannun karancin lokaci da aka dauke da rashin aiki, kuma ta kara tsawon aiki na radiator a yankunan masoyi masoyin masoyi.
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