【業物】本物の日本刀が再現できない理由ってなんなの？鉄 [368723689]

596 ：番組の途中ですがアフィサイトへの＼(^o^)／です (ｻｻｸｯﾃﾛT Sp1f-eXu6)：2016/09/19(月) 21:28:22.75 ID:334YYw1tp.net

まだいるか？
https://en.m.wikipedia.org/wiki/Steel

The Chinese of the Warring States period (403–221 BC) had quench-hardened steel,[21] while Chinese of the Han dynasty
(202 BC – 220 AD) created steel by melting together wrought iron with cast iron, gaining an ultimate product of a
carbon-intermediate steel by the 1st century AD.