About HIRAO KEIICHI
About YAMANE TOSHIMI
About OKADA NOBUHIRO
About SATO AYA
About SHIRAI YASUHARU
About HANASAKI SHINSAKU
About MIYAMOTO TAKESHI
About KAZAMA KEIZO
About 住友金属鉱山伸銅
About 伸銅技術研究会誌
About brass
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About 過渡現象