Ikhoyili zentsimbi / amashiti e-Galvanised (GI) ikwabizwa ngokuba yimigca yentsimbi / amashiti eshushu okanye idiphozithi yentsimbi / amashiti, ii-coils / amashiti zentsimbi ezixhaswe kwimigca yentsimbi eqengqelekayo ngenkqubo yokuntywila kwidig, umphezulu unamandla okusebenza ngokuchasene nokugqobhoza kunye nokuchama kakuhle. Ikhoyili zentsimbi / amashiti e-Galvanised (GI) isetyenziswa ikakhulu ekwakheni, kumzi-mbane wokukhanya, kwimoto, njl. Kumzi-mveliso wokwakha, iikhoyili zentsimbi / amashiti zisetyenziswa ikakhulu ekwenzeni ipaneli yophahla, i-grille yophahla, njl njl. ) Zisisiseko sesinyithi esifanelekileyo se-PPGI yentsimbi / amashiti.