Dhonza rivets dzinosanganisira aluminium, iron, uye simbi isina tsvina.Chii chinonzi semi-stainless simbi mapofu rivets?

Iyo semi-stainless simbi yebofu rivet ndeyekuti chipikiri ganda isimbi isina tsvina uye chipikiri tsvimbo isimbi, iyo inonzi semi-stainless simbi bofu rivet.