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Ndezvipi zvinoshandiswa nesimbi isina ngura mbiri?
Simbi isina tsvina mbiri isimbi isina tsvina umo ferrite neaustenite zvikamu muchimiro chemhinduro yakasimba chimwe nechimwe chinosvika 50%. Haingori chete yakasimba, ine simba rakawanda uye inodzivisa chloride ngura, asiwo inodzivisa ngura inopinda mugomba uye intergranula...Verenga zvakawanda
