ʻO ka hao pālahalaha he ʻano kila i hoʻohana ʻia no ka hoʻopaʻa ʻana i ka uila.Loaʻa iā ia ka hana anti-corrosion a me ka anti-rust.Hoʻohana pinepine ʻia ʻo ia ma ke ʻano he conductor no ka uila uila.