Amakhoyili wensimbi / amashidi we-Galvanised (GI) abizwa nangamakhoyili wensimbi / amashidi we-hot-dipped noma amashidi, amakhoyili wensimbi / amashidi kagesi asuselwa kunqenqemeni lwensimbi olubandayo lwenqubo eshisayo. ingaphezulu linokusebenza okuhle kakhulu okumelana nokugqwala kanye nemishini emihle kakhulu. Amakhoyili wensimbi / amashidi we-Galvanised (GI) asetshenziswa ikakhulu ekwakheni, embonini ekhanyayo, ezimotweni, njll. Embonini yezokwakha, amakhoyili wensimbi / amashidi asetshenziswa ikakhulukazi ekwakheni amapaneli ophahla, uphahla lwendlu, njll. ) ziyinsimbi enhle eyisisekelo yamakhoyili / amashidi we-PPGI.