1. Galvanized karfe bututu: An welded tare da zafi tsoma shafi ko electrogalvanized shafi a kan surface.Farashin mai arha, ƙarfin injiniya mai ƙarfi, amma mai sauƙin tsatsa, bangon bututu mai sauƙin sikelin da ƙwayoyin cuta, ɗan gajeren rayuwar sabis.Galvanized karfe bututu ne yadu amfani da lantarki p ...
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