Ua hana nuiʻiaʻo Copperl alamal Alloy o ke keleawe a me Nickel. Hiki ke hoʻokaʻawaleʻia ke keleawe a me Nickel i kahi meaʻole he nui ka hapa o ka pakeneka. ʻOi aku ka nui o ke koena o ka cuni alloy e kiʻekiʻe aʻe ināʻoi aku ka nui o ka manaʻo nickel ma mua o nā mea kūʻai keleawe. Mai Cuni6 iā Cuni44,ʻo ke koena mai ka 0.1,5M i 0.49 E kōkua ana i ka mea hana reigor e koho ana i ka clock kūpono kūpono loa.