Kev txhim kho corrosion kuj txhais tau hais tias cov hlau no tuaj yeem siv tsis tas yuav siv cov xim kim kim. Txo qhov kev xav tau ntawm cov xim pleev xim tuaj yeem txo qis ob qho tib si thawj cov nqi tsim khoom thiab cov nqi kho mob tsis tu ncua rau cov txuas hniav piv rau cov choj pleev xim ua los ntawm cov qauv hlau.

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