PFNA ƒe ɖa nye nusi wozãna le ʋuka me ƒe ɖoɖo si wozãna le afisiafi hena afɔkpodzi ƒe gbagbã siwo te ɖe eŋu dada, vevietɔ akɔta ƒe gbagbã siwo meli ke o kple ƒumeŋuɖui. Eƒe antirotation blade doa ŋusẽ liƒo, edoa alɔ ʋuʋu kaba, eye wòɖea fixation ƒe kpododonu dzi kpɔtɔna, si wɔnɛ be PFNA nyea egbɔkpɔnu nyui aɖe le egbegbe ƒumeŋutinunya ƒe nuveviwɔame dzi kpɔkpɔ me.
Nusiwo wowɔ .