Teflon FEP fluorinated ethylene-propylene FEP FEP FEP FEP FEP FEP FEP FEP FEP FEP FEP: Fluorinated ethylene propylene FEP Teflon Fluorinated ethylene propylene (FEP) gefluoreerde ethyleenpropyleen FEP FEP FEP FEP FEP FEP FEP Teflon FEP FEP FEP FEP estruso FEP FEP FEP FEP FEP English FEP FEP FEP