パッと見スルータイプかと思いきやよく見ると補強あり
限りなく薄い補強良いね
https://i.imgur.com/i3Ebghe.jpg
https://i.imgur.com/XwCc2Gr.jpg
https://i.imgur.com/KGmSY1a.jpg
https://i.imgur.com/5wOtdLj.jpg
https://i.imgur.com/xvQW2bO.jpg
https://i.imgur.com/n0V0fZB.jpg