Steel coil ppgl bụ okwu mkpọ okwu maka galvalume ígwè etinyere ya, ọ na-eji galvanized aluminum ntekwasa ígwè dị ka mkpụrụ.Mgbe ọgwụgwọ elu (chemical degenreasing na kemịkalụ ọgwụgwọ mgbanwe kemịkalụ), elu kpuchie ya na oyi akwa ma ọ bụ ọtụtụ n'ígwé nke mkpuchi, site na mmiri na ọgwụgwọ, wee ghọọ PPGL.
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.