Ppgi Steel Coil ndi chidule cha chitsulo chopakidwa kale malata, chimagwiritsa ntchito malata ngati gawo lapansi.Pambuyo pokonzekera pamwamba (kuchotsa mankhwala ndi mankhwala otembenuza mankhwala), pamwamba pake yokutidwa ndi wosanjikiza kapena zigawo zingapo za zokutira, kupyolera mu kuphika ndi kuchiritsa, ndiye kukhala PPGI.
The utoto filimu kuti tikhoza kuchita 10-30microns.Kukwera kwa filimu ya utoto, kumakhala moyo wautali wautumiki wa mtunduwo.
Zinthu zopenta zachitsulo chopangidwanso ndi malata ndi PE, SMP, HDP, PVDF, ects.