Iko kuchinjika kwezvakatipoteredza kwendarira tsvimbo yekudzivirira ngura

Iyo pamusoro pendarira inonamira kuumba dense inodzivirira firimu re zinc oxide kana basic zinc carbonate, iyo inoratidza kunaka kwekusagadzikana munzvimbo dzakarerekera kana dzisina kusimba alkaline. Mumamiriro ezvinhu ekuora akadai semvura yegungwa uye mhepo yakanyorova, kusaora kwayo kwakanyanya kudarika kwekabhoni simbi yakajairwa, asi haina kusimba kupfuura yesimbi isina tsvina. Zvakakosha kuziva kuti lead-ine brass (yakadai seHPb59-}1) haingokwidzi kushanda kwekucheka chete asiwo inoderedza coefficient of friction kuburikidza nerubricating effect yemutobvu, zvichiipa mukana wakakura muzvinhu zvisingapfeke.