Gulu lamagetsi lophatikizika lamagetsi limapangidwa ndi zomatira zotentha kwambiri zokhala ndi filimu ya polyester.Lili ndi makina abwino, magetsi, shrinkage, hygroscopicity ndi kukana kutentha kodalirika.Izo makamaka ntchito youma thiransifoma mkulu ndi otsika voteji.Kutsekereza pakati pa ma coils, kungagwiritsidwe ntchito ngati silinda yotsekera ndi kutchinjiriza kumapeto m'malo mwa bolodi la epoxy resin, bolodi la phenolic resin.
