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Reagent iav fwj
React iav fwj yog iav fwj siv los khaws cov tshuaj reagents. Cov fwj no feem ntau yog ua los ntawm cov kua qaub thiab alkali resistant iav, uas tuaj yeem ruaj ntseg khaws ntau yam tshuaj xws li acids, bases, daws, thiab cov kuab tshuaj.
