Nō mātou ngā whakariterite aluminium e tika ana mō te hanga i tētahi pūtātaki iti, nō reira he mea nui ngā whakaawe matua. Mō 17 tau kei mua ka mahi a tōku kāhui nei, e whai pānga ana ki 20 mano rongouru whānuitia, ko tēnā he toki whakapono mō te pai. Nō tō mātau kāhui ngā rara aluminium mō ngā pūtātaki iti, e hanga ana i waenganui i ngā raetititi aluminium i waenga i te 1000 ki te 7000 hei whai hua pai rawa i te uara ki te rahi. Ko ia tētahi rara o te aluminium e whakatakoto ana kia puta i runga i tētahi mātauranga ā-pūkaha mō te whakamahere mata. Ko tēnei he kī taea e ia ana, ko ia te mutunga herehere i tana mahi. Ka taea e ngā pūtātaki iti e whakatupu ana hei tae atu ki ngā tikanga o te hunga whakamahere, me te whakawhanake i ngā take rangatira o te manawa ora, hei whakaae i ngā momo pūtātaki tawhito rānei, hōu rānei. Ki runga anō i ngā āhuatanga mekanika horoi, ko ngā momo whakamahere mata hōu, pērā i te kāwharu pūrau me te tuhi pūtake rakau, e whakapakari ana i te mana motuhake o ngā pūtātaki iti. Me te kotahi tonu o te kohinga taonga, ko te wehewehe tonu i te 35 mano tona i te tau, ka noho haumaru tonu te whakawhiti.