鋼鉄 (こうてつ) Japanese meaning | KotomoraThe steel door slowly closed.
Usage patterns
〈物〉は鋼鉄でできている(something) is made of steel
This building's frame is made of steel.
鋼鉄のような〈物〉something as hard/strong as steel
He has a body as strong as steel.
鋼鉄の意志an iron/steel will (figurative for unbreakable resolve)
She overcame hardship with an iron will.
