No ke kūʻai ʻana i nā electrodes graphite, e ʻoluʻolu e heluhelu iā lākou ma mua o ke koho ʻana!
No nā makahiki ʻoi aku ma mua o ʻumi, ua hoʻolako mākou i nā kumuwaiwai kiʻekiʻe no nā wili kila haole nui.Eia kekahi laʻana,ʻo nā mea kanu kila nui ma'Akelika Hema,ʻEulopa Hikina, Central Europe, Middle East, Iran, Russia, a me nā mea'ē aʻe, uaʻike likeʻia e nā mea kūʻai.