Ko te whānui me te matotoru o te waea whakamahana he tawhā e pā ana ki te pāmahana whakahaere mōrahi. Ko te nui ake o te whānui o te waea whakamahana, ko te māmā ake te wikitoria i te raruraru whakarerekētanga i te pāmahana teitei me te whakaroa i tōna ake oranga ratonga. Ina mahi te waea whakamahana i raro i te pāmahana whakahaere mōrahi, kaua te whānui e iti iho i te 3mm, ā, kaua te matotoru o te whitiki papatahi e iti iho i te 2mm. Ko te roanga mahi o te waea whakamahana he mea nui anō hoki ki te whānui me te matotoru o te waea whakamahana. Ina whakamahia te waea whakamahana i roto i te taiao pāmahana teitei, ka hangaia he kiriata waikura tiaki ki runga i te mata, ā, ka tawhito te kiriata waikura i muri i tētahi wā, ka hanga he huringa o te whakaputa me te whakangaromanga tonu. Ko tēnei tukanga anō hoki te tukanga o te kai tonu i ngā huānga i roto i te waea oumu hiko. Ko te waea oumu hiko he whānui me te matotoru nui ake he nui ake te ihirangi huānga me te roa ake te oranga ratonga.
1. Ngā painga me ngā ngoikoretanga matua o te raupapa koranu rino-konukōmiuma-konumohe: Ngā painga: he teitei te pāmahana ratonga o te koranu whakamahana hiko rino-konukōmiuma-konumohe, ka taea te eke ki te pāmahana ratonga mōrahi ki te 1400 nekehanga, (0Cr21A16Nb, 0Cr27A17Mo2, me ētahi atu), he roa te ora ratonga, he teitei te kawenga mata, he pai te ātete ki te waikura, he teitei te ātete, he iti te utu me ētahi atu. Ngā ngoikoretanga: He iti te kaha i te pāmahana tiketike. I te pikinga o te pāmahana, ka piki ake tōna kirihou, ā, ka ngāwari te whakapēhanga o ngā wāhanga, ā, he uaua ki te piko me te whakatika.
2. Ngā painga me ngā ngoikoretanga matua o te raupapa koranu whakamahana hiko nikara-konukōmiuma: Ngā painga: he kaha ake te pāmahana teitei i te rino-konukōmiuma-konumohe, kāore e ngāwari ki te whakapē i raro i te whakamahinga pāmahana teitei, kāore e ngāwari ki te whakarerekē i tōna hanganga, he pai te kirihou, he ngāwari ki te whakatika, he nui te tukunga, kāore e aukume, ātete ki te waikura He kaha, he roa te ora ratonga, me ētahi atu. Ngā ngoikoretanga: Nā te whakamahinga o ngā rauemi konganuku nikara onge, he maha ngā wā teitei ake te utu o tēnei raupapa hua i te Fe-Cr-Al, ā, he iti iho te pāmahana whakamahinga i te Fe-Cr-Al.
Ngā mīhini whakarewa, te maimoatanga hauora, te ahumahi matū, ngā uku, ngā hikohiko, ngā taputapu hiko, te karāhe me ētahi atu taputapu whakamahana ahumahi me ngā taputapu whakamahana ā-iwi.