About FUJITA TAKEO
About OGI KEISAKU
About FUKUI TAKASHI
About SUENAGA MAKOTO
About 日立金属
About nodular graphite cast iron
About Mechanical properties
About Heat treatment technology
About オーステンパ球状黒鉛鋳鉄
About ころがり
About 疲労強度
About 黒鉛
About 粒数