noun which may take the genitive case particle 'no'
non-ferrous
Technical term used in metallurgy and materials science to describe metals that do not contain iron, such as aluminum, copper, and titanium.
Recycling non-ferrous metals is important.
この工場では非鉄金属を加工しています。
This factory processes non-ferrous metals.
non-ferrous metal
Compound of 非 (hi, 'non-') and 鉄 (tetsu, 'iron'), literally 'non-iron'. The term is a modern technical coinage.