WP402A
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Pūrere tuku pēhanga tino tika mō te Kaupapa Hōia WP402A
Ka tīpakohia e te tuku pēhanga WP402A ngā wāhanga tairongo tino tika kua kawemaihia, me te kiriata ārai-waikura. Ka whakakotahihia e te wāhanga te hangarau whakauru āhua-totoka me te hangarau diaphragm wehe, ā, mā te hoahoa hua ka taea e ia te mahi i roto i ngā taiao uaua me te pupuri tonu i te mahi pai rawa atu. Ko te ātete o tēnei hua mō te whakatikatika pāmahana ka mahia ki runga i te papa uku whakaranu, ā, ka whakaratohia e ngā wāhanga tairongo he hapa pāmahana iti o te 0.25% FS (mōrahi) i roto i te awhe pāmahana whakatikatika (-20~85℃). He kaha te ārai-aukati o tēnei tuku pēhanga, ā, he pai mō te tono tuku tawhiti.