About IKEGIWA HIROYUKI
About 和歌山大 教育
About HIRATA SHIGETOSHI
About 和歌山県工技セ
About HIRAOKA TAKESHI
About 和歌山大 教育
About KAJIMOTO TAKESHI
About 和歌山県工技セ
About wood processing
About Lumbering,processing
About 木材
About 簡易
About 炭化法
About 低温
About 炭化
About 処理木材
About 性質