Zvakanakira: imwe dhigirii yekuomarara, kuchinjika kwakanaka, elasticity yakanaka, kupfeka kuramba, kusaita ngura, huremu huremu, kupenya uye kunaka kwemavara. 1. High-nickel alloy frames: The nickel content yakakwira kusvika 80%, kunyanya nickel-chromium alloys, manganese-nickel alloys, nezvimwewo, high-nickel al...
Verenga zvimwe