About ISHII KAZUO
About 渡辺鋳造所
About SHIBUYA UICHIRO
About 渡辺鋳造所
About WATANABE TOSHITAKA
About 渡辺鋳造所
About HAREYAMA TAKUMI
About YAMADA TOORU
About nodular graphite cast iron
About Mf temperature
About Transformation structures,work structures
About ニッケル
About マンガン
About マルテンサイト
About 球状黒鉛鋳鉄
About 開発