Injin Face Seals DF
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Injin Face Seals DF kuma aka sani da Biconical Seals
Hatimin ƙarshen injina ko hatimin aiki mai nauyi an tsara su don aikace-aikacen jujjuyawar a cikin matsanancin yanayi inda za su iya jure tsananin lalacewa da hana shigowar kafofin watsa labarai na waje masu ɓarna.Ana kiran hatimin ƙarshen injina da hatimi mai nauyi, hatimin ƙarshen, hatimin iyo, hatimin rayuwa, hatimin Toric, da hatimin mazugi da yawa.
