ʻO ke keleawe cathode kekahi ʻano metala non-ferrous e pili pono ana i ke kanaka.Hoʻohana nui ʻia i ka mana uila, ʻoihana māmā, ʻoihana mīkini, ʻoihana kūkulu hale, ʻoihana pale aupuni a me nā kula ʻē aʻe.Hoʻohana ʻia no ka wili ʻana i ke kūpaʻa ʻana o nā kaula like ʻole, nā uea, nā moto, nā transformers, nā hoʻololi, nā papa kaapuni paʻi.ʻO ka hana ʻana i nā valves ʻoihana a me nā mea pono, nā mea kani, nā sliding bearings, nā mold, nā mea hoʻololi wela a me nā pumps.Aso hana i ka vacuum, distillation tank, brewing tank a pēlā aku.