Ppgl Bobine ne prepainted galvalume karfe coils, wanda amfani galvalume karfe a matsayin substrate.Bayan saman pretreatment (sinadaran degenreasing da sinadaran hira magani), ppgi/ppgl karfe nada surface mai rufi da Layer ko da yawa yadudduka na shafi, ta hanyar yin burodi da curing, sa'an nan ya zama PPGL.Bugu da ƙari, kariya daga aluzinc Layer, kwayoyin halitta da ke kan aluzinc Layer yana taka rawa wajen rufewa da kuma kare launi na karfe mai rufi, yana hana kullun karfe daga tsatsa, kuma rayuwar sabis ɗin ta kusan sau 1.5 fiye da na galvalume karfe. nade.