O lenei seti o mea faʻapipiʻi na oloina ma le saʻo ISO7, faʻaaogaina i le faʻaitiitiga o mea faʻapipiʻi, o le faʻaitiitiga o mea faʻapipiʻi o se ituaiga o mea faʻapipiʻi faʻapipiʻi, ma o se faʻaitiitiga faʻapitoa mo faʻalavelave eseese. , Ola umi, maualuga le lelei, faʻaogaina mautu ma isi uiga, o le faʻatinoga o le masini atoa e sili atu le maualuga nai lo le faʻaitiitia o le pinwheel cycloidal ma le faʻaitiitia o le anufe, lea ua lauiloa ma faʻaaogaina e tagata faʻaoga.