Cov khoom siv tooj dag sib txawv, xws li 95, 53, 56, thiab 62, muaj qhov sib txawv ntawm cov tooj liab thiab zinc, uas cuam tshuam rau cov khoom ntawm tooj dag alloy, xws li corrosion kuj, lub zog, thiab machinability.Piv txwv li, 95 tooj dag, uas yog 95% tooj liab thiab 5% zinc, feem ntau yog siv los ua kais dej beca ...
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