About TAGAWA TETSUYA
About MIYATA TAKASHI
About AIHARA SHUJI
About 新日本製鉄 鉄鋼研
About OKAMOTO KENTARO
About 新日本製鉄 鉄鋼研
About high tension steel
About Weld zone
About Transformation structures,work structures
About Mechanical properties
About 高張力鋼
About 溶接熱影響部
About 島状マルテンサイト
About 靭性