いろんなフォントで「blast_furnace」変換
Zen Old Minchoblast_furnace
Yusei Magicblast_furnace
M PLUS 1blast_furnace
Shippori Antiqueblast_furnace
Yuji Maiblast_furnace
Dela Gothic Oneblast_furnace
DotGothic16blast_furnace
Train Oneblast_furnace
Hira Minchoblast_furnace
Potta Oneblast_furnace
Reggae Oneblast_furnace
Stickblast_furnace
Zen Kurenaidoblast_furnace
Kosugi Marublast_furnace
Rampart Oneblast_furnace
Hachi Maru Popblast_furnace
New Tegominblast_furnace
RocknRoll Oneblast_furnace
Kaisei Decolblast_furnace
「blast_furnace」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
