Qhov tseem ceeb, pom qhov txawv tsuas yog qhov cim, txwv tsis pub cov khoom siv hluav taws xob zoo Soviet ua los ntawm cupronickel tau ua raws li cov qauv tib yam li cov khoom ua los ntawm cov nyiaj. Needless hais, cutlery zoo li incomparable, txawm li cas los xij, thaum polished rau ci. Cupronickel darkens, nyiaj, ntawm chav kawm, ib yam nkaus, tab sis tsis yog li ntawd sai sai, thiab tag nrho cov tswv ntawm cupronickel diav ntsib qhov teeb meem no. Hauv tsab xov xwm no, peb xav kom paub yuav ua li cas ntxuav cupronickel, rov qab cov khoom kom zoo