Iikhoyili ezigqunywe ngombala zisekelwe kwiphepha elenziwe ngentsimbi eshushu-diphu, ishidi elitshisiweyo lesinyithi, i-electro-galvanized sheet, njl njl. Emva kokulungiswa komphezulu (ikhemikhali yokucoca kunye nonyango lokuguqulwa kweekhemikhali), enye okanye iileya ezininzi zezinto eziphilayo zifakwe kumphezulu. , kwaye ke Imveliso ephiliswe ngokubhaka.
Umtya wentsimbi ogqunywe ngombala usebenzisa intsimbi eshushu-diphu eyenziwe ngamazimba njengoko isiseko sezinto sikhuselwe ngumaleko we-zinc, kunye ne-organic coating kwi-zinc layer idlala indima egqunyiweyo kunye nokukhusela ukuthintela umtya wentsimbi ukurusa, kunye nobomi benkonzo. inde kunomcu wegalvanized, malunga namaxesha ayi-1.5.