PPGI bụ okwu mkpọ okwu maka igwe galvanized agbagoro agbagoro, ọ na-eji galvanized dị ka mkpụrụ.Mgbe ọgwụgwọ elu (chemical degenreasing na kemịkalụ mgbanwe ọgwụgwọ), elu kpuchie na oyi akwa ma ọ bụ ọtụtụ n'ígwé nke mkpuchi, site na mmiri na ọgwụgwọ.
PPGL bụ eriri igwe igwe galvalume agbagoro agba.Isi ihe bụ galvanized/aluzinc eriri igwe.
Ihe nkiri agba nke anyị nwere ike ime 10-30microns.Ihe nkiri agba dị elu, ogologo ndụ ọrụ nke agba.
Ihe eserese bụ PE, SMP, HDP, PVDF, ects.