(1) Ezi zixhobo zifayo zifanelekile kwifriji, ukukhenkceza okanye kumashishini athile akhethekileyo.
(2) Ukuphakama kwe-flap ye-fin die kuxhomekeke kwizinto ezininzi, ezifana ne-aluminium foil, ioli eguqukayo, umgama womngxuma kunye nomgama wekholamu ye-fin, njl.
(3) I-SINOAK iphuhlise i-collar fin ephezulu yokufa kunye noluhlu olubanzi lohlengahlengiso lwe-flip ukuphakama, olunokulawulwa ngokubanzi ngaphezu kwe-6mm.
(4) I-collar fin fin die ephuhliswe yi-SINOAK igcina i-coefficient ye-punching flap eqhelekileyo, iqinisekisa ukuba ukuphakama kufikeleleke ngaphandle kokuqhekeka kwe-flap kwi-fin kufa ngexesha elifanayo.