Muindasitiri nehupenyu, simbi isina tsvina yakakwezva kutariswa kwakawanda nekuda kwezvimiro zvayo zvakakosha. Iyo alloy zvinhu zvinonyanya kuumbwa nesimbi, kabhoni, nickel, chromium, uye zvimwe zvinhu. Simbi isina tsvina ine zvakawanda zvakasiyana zvivakwa zvinoita kuti ishandiswe zvakanyanya munzvimbo dzakasiyana siyana. Kutanga, isina tsvina ...
Verenga zvimwe