About NAKAE HIDEO
About 早稲田大学材料技術研究所
About YASUI JUN'ICHI
About 早稲田大学材料技術研究所
About MINEDA MOTOHARU
About サンワーク
About temple
About nail (fastener)
About metal structure (microstructure)
About low carbon steel
About ferrite structure
About forging
About carburizing (heat treatment)
About crystal grain size (diameter)
About Archaeology
About deformation structure
About organization
About modification
About microstructure
About Transformation structures,work structures
About 瓦
About 釘
About 材質
About 調査