Simbi isina waya ndiro ndiro izita resimbi isina simbi uye ndiro isina simbi yesimbi, ine pamusoro wakatsetseka, yakasimba mapurasitiki, kuomarara uye simba remuchina, uye ngura kuramba asidi, alkaline gasi, mhinduro uye mamwe midhiya. Iyo mhando yesimbi yesimbi isiri nyore kuita ngura, asi kwete ngura zvachose. Stainless simbi ndiro inoreva ngura inodzivirira simbi simbi mune isina kusimba svikiro senge mhepo, chiutsi uye mvura, nepo asidi isina simbi simbi ndiro inoreva ngura inodzivirira simbi ndiro mukemikari inoparadza svikiro senge acid, alkali uye munyu.