1) Icho chinhu chikuru chePamusoro tembiricha polyimied firimu, resin, engineering epurasitiki semavhuvhu: Polyimide, polyether imide, polyester imide, polymaleimide, poly aryl amide. 2)Iyo zvinhu zve 3,3',4,4'-Tetraaminodiphenyl Eteri inova monomer huru yekutevedzana kweanonhuhwirira heterocyclic heat inodzivirira polymeric zvinhu. 3)Inyaya yemhando yepamusoro yekupisa kupisa kwe epoxy resin, polyurethane uye zvimwe zvinhu zvepolymer uye crosslinking agent.