Metallurgy & Metalworking

ʻO nā noi ea i hoʻopaʻa ʻia i ka hana metala, hiki i nā compressor ea ke hāʻawi i ka mana ea e hoʻohana ʻia e like me nā blast furnaces, coke production, oxygen furnace, ea hui, mālama wela a me ka hoʻomaha.