Ubwa mbere, dukeneye gusobanukirwa imiterere yimiti nimiterere yumubiri wa plaque 201.Isahani 201 idafite ibyuma ni ibikoresho bivanze birimo chromium 17% kugeza 19%, nikel 4% kugeza 6% na 0.15% kugeza 0.25% ibyuma bike bya karubone.Ibi bikoresho bivanze bifite imbaraga zo kurwanya ruswa ...
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