{
  "type": "silentgear:compounding/metal",
  "ingredients": [
    {
      "tag": "forge:ingots/copper"
    },
    {
      "tag": "forge:ingots/copper"
    },
    {
      "tag": "forge:ingots/copper"
    },
    {
      "tag": "forge:ingots/iron"
    }
  ],
  "result": {
    "count": 4,
    "item": "thermal:bronze"
  }
}