Intambo yokuqhawula ehlengahlengisiweyo, i-stripper yocingo egqunyiweyo isetyenziselwa ukuhluba ukugquma kwentambo egqunyiweyo.I-Knife-edge inokulungiswa kakuhle ukuba yoyise ubukhulu be-nonuniform yangaphandle ye-insulation, kwaye ingalimaza ubhedu kunye nomgca we-aluminium.