冶 (peace, government, cure, heal, rule, subdue, patch)

鍛冶屋かじやになるのは，鉄てつを鍛きたえながらだ。

It's by smithing that one becomes a blacksmith.

ＯＤＳスーパーアロイは粉末ふんまつ冶金やきん技術ぎじゅつを伴ともなうメカニカルアロイ法ほうにより製造せいぞうされます。

ODS super alloy is produced by the mechanical alloy method following powder metallurgy.