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電熱水壺的發熱線發綠

我家的電熱水壺的發熱線(金屬)用了一段時間之後發綠(銅綠),請問有沒有害處及如何清除和預防?

By rachel ma  (graduate) on 2010-01-02  Answers 2   Views 173

i can answer
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By rex chau on 2010-02-10

那些綠色可能是銅線氧化,那些氧化物未必有害,但可能會導致水壼漏電,還是小心為妙

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By wing cheng (graduate) on 2010-02-10

你的水壼係咪已經好舊?我之前都試過,唔知有無害處,但我都係換過個喇~

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