{
  "type": "minecraft:crafting_shaped",
  "pattern": [
    " B ",
    " I ",
    "B B"
  ],
  "key": {
    "B": {
      "item": "pneumaticcraft:turbine_blade"
    },
    "I": {
      "tag": "forge:gears/compressed_iron"
    }
  },
  "result": {
    "item": "pneumaticcraft:turbine_rotor"
  }
}