Ibyuma bya Manganese, byitwa kandi ibyuma bya Hadfield cyangwa mangalloy, ni ugutezimbere IMBARAGA, DURABILITY & TOUGHNESS, nimbaraga za ais ibikoresho bisanzwe mubikoresho byo kwambara. Urwego rwose rwa manganese kandi rusanzwe mubisabwa byose ni 13%, 18% na 22% ....
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