About NAKA TETSUO
About MURAKAMI HIDEMASA
About HASHIMOTO TOMOAKI
About 国立弓削商船高等専門学校紀要(Web)
About steel plate
About bending(plastic working)
About spring back
About tensile force
About bending test(bending)
About extruding dies
About high tensile strength steel plate
About Press working
About 高張力鋼板
About 曲げ
About スプリングバック
About 引張力