{
  "type": "minecraft:crafting_shaped",
  "category": "misc",
  "key": {
    "B": {
      "item": "minecraft:iron_bars"
    },
    "C": {
      "tag": "c:ingots/cast_iron"
    },
    "P": {
      "item": "tfmg:cast_iron_pipe"
    }
  },
  "pattern": [
    "BPB",
    "BPB",
    "CPC"
  ],
  "result": {
    "count": 1,
    "id": "tfmg:exhaust"
  }
}