Amakhoyili ahlanganiswe ngombala asekelwe eshidini elinothayela lokucwilisa elishisayo, ishidi le-hot-dip galvanized sheet, ishidi elenziwe i-electro-galvanized, njll. Ngemva kokwelashwa kwangaphambili (ukukhishwa ngamakhemikhali nokwelashwa kokuguqulwa kwamakhemikhali), ungqimba olulodwa noma ezimbalwa zezingubo zemvelo zisetshenziswa ngaphezulu. , bese kuba Umkhiqizo oye welapheka ngokubhaka.
Umucu wensimbi ogqitshwe ngombala osebenzisa umucu wensimbi oshisayo-idiphu njengoba isisekelo sivikelwa ungqimba lwezinc, futhi ulwelwesi oluphilayo kungqimba lwezinc ludlala indima evalayo neyokuvikela ukuze kuvinjelwe umugqa wensimbi ukuthi ungagqwali, kanye nempilo yesevisi. yinde kunaleyo yomugqa othathiwe, cishe izikhathi eziyi-1.5.