1) O jẹ ohun elo akọkọ ti Fiimu polyimied ti o ga julọ, resini, ṣiṣu ẹrọ bi bellows: Polyimide, polyether imide, polyester imide, polymaleimide, poly aryl amide 2) O jẹ ohun elo ti 3,3',4,4'-Tetraaminodiphenyl Ether eyiti o jẹ monomer akọkọ ti lẹsẹsẹ ti ohun elo aromatic heterocyclic ooru sooro polymeric 3) O jẹ ohun elo ti iṣẹ ṣiṣe ooru giga ti resini iposii, polyurethane ati awọn ohun elo polima miiran ati oluranlowo crosslinking.