He mea hanga tēnei tinana takirere mai i te maitai waro i hangaia, ā, he wāhanga matua tēnei i roto i ngā huihuinga takirere pōro ahumahi. Kua hangaia kia tū atu ki ngā āhuatanga mahi uaua pēnei i te pēhanga teitei, te huringa auau, me te pāmahana hurihuri. Kua oti te mīhini i te wāhanga ki ngā ātete kikī, kia mau ai te pono o ngā mata hiri, te tika o te whakaritenga o te poka, me te āhua o te flange. Mena e hiahiatia ana, ka taea hoki te hanga i te tinana mai i te maitai kore waikura (304, 316, 316L rānei) hei whakamahi i roto i ngā taiao waikura, taiao ratonga ma rānei.