I-1, iindleko zonyango eziphantsi: iindleko zokukhusela i-dip galvanized rust iphantsi kuneendleko zezinye iingubo zepeyinti;
2, ixesha elide: idiphu eshushuibha yentsimbi yentsimbiineempawu zokucwebezela komphezulu, umaleko we-zinc ofanayo, akukho ukuvuza kokuvuza, akukho ukuthontsiza, ukuncamathela okuqinileyo, ukuxhathisa okuqinileyo, kwimo engqongileyo yedolophu, umgangatho wokuthintela umhlwa oshushu oshushu-diphu unokugcinwa iminyaka engaphezu kwama-50 ngaphandle kokulungiswa; Kwiindawo ezisezidolophini okanye ezikude nonxweme, umaleko oqhelekileyo wokuchasa umhlwa ungagcinwa iminyaka engama-20 ngaphandle kokulungiswa;
I-3, ukuthembeka okulungileyo: i-galvanized layer kunye nentsimbi yindibaniselwano ye-metallurgical, ibe yinxalenye yentsimbi yentsimbi, ngoko ke ukuqina kwengubo kunokwethenjelwa ngakumbi;