noun, noun which may take the genitive case particle 'no'
Technical term for low-carbon iron that is tough and malleable, historically used before modern steel.
この門は練鉄で作られている。
This gate is made of wrought iron.
練鉄の柵が庭を囲んでいる。
A wrought iron fence surrounds the garden.
Compound of 練 (れん, 'knead, refine') or 錬 (れん, 'temper, refine') and 鉄 (てつ, 'iron'), referring to iron that has been worked or refined.