1, mitengo yakaderera yekurapa: mutengo wekudzivirira ngura kubva mukupisa dip galvanized wakaderera pane mutengo wemamwe mapendi ekupenda;
2, inogara kwenguva refu: inopisa-inonyudzabhaa rekona resimbi rakarukwaine hunhu hwekupenya kwepamusoro, zinc layer yakafanana, hapana kudonhedza mvura, hapana kudonhedza mvura, ine simba rekunamatira, inodzivirira ngura zvakanyanya, munzvimbo dziri pedyo neguta, ukobvu hwekudzivirira ngura hunogona kuchengetedzwa kwemakore anopfuura makumi mashanu pasina kugadziriswa; Mumaguta kana mumahombekombe, galvanized anti-ngura layer yakajairwa inogona kuchengetedzwa kwemakore makumi maviri pasina kugadziriswa;
3, kuvimbika kwakanaka: galvanized layer nesimbi zvinosanganiswa nesimbi, zvinova chikamu chesimbi pamusoro, saka kugara kwenguva refu kwejira racho kwakavimbika;