About TANAKA YASUHIRO
About TAKEMURA AKIHIRO
About shot peening
About oxide film
About red shortness
About copper containing alloy
About content (quantity)
About action and effect
About suppression and control
About concentration (enrichment)
About electric furnace steel
About alloying element
About Cu content
About tramp element
About conversion coating film
About copper containing alloy
About inhibitory effect
About Heat treatment defect
About Other surface treatment
About 素形材
About 付加価値
About 熱処理
About 表面処理
About Cu
About 赤熱脆性
About ショットピーニング