Ko ngā āhuatanga o te mana karihi he iti ake te parahanga, ā, tata kore rawa ngā tukunga hau kati kōtuhi. He pūngao hou whai hua, ma hoki tēnei, ā, koinei te whiringa matua mā Haina hei whakapai ake i te hanganga pūngao. He tino teitei ngā whakaritenga mahi haumaru me ngā whakaritenga kounga tino pakari mō ngā taputapu mana karihi. Ko ngā rauemi matua mō te mana karihi ka wehea whānuitia ki te maitai waro, te maitai koranu iti, te maitai kore waikura, te koranu nikara, te titanium me ōna koranu, te koranu zirconium, me ētahi atu.
I te tīmatanga o te whenua ki te whakawhanake kaha i te mana karihi, kua whakanuia ake e te kamupene tōna kaha tuku taonga, ā, kei te whai wāhi nui ki te kimi i ngā rauemi me ngā taputapu matua mō te mana karihi i Haina.