redbowkk9600「焼入れ　Katana making(5)」<br><a href="https://www.youtube.com/watch?v=IlWYsYTa_3U" target="_blank" rel="noopener nofollow">https://www.youtube.com/watch?v=IlWYsYTa_3U</a><br>マイリスト：<a href="https://www.nicovideo.jp/mylist/64659011" target="_blank" rel="noopener">mylist/64659011</a><br>刀作り４：<a href="https://www.nicovideo.jp/watch/sm26741458" class="watch">sm26741458</a>／刀作り６：<a href="https://www.nicovideo.jp/watch/sm26752002" class="watch">sm26752002</a>