{
  "type": "minecraft:smithing_transform",
  "template": {
    "item": "superbwarfare:mk_42_blueprint"
  },
  "base": {
    "item": "superbwarfare:cannon_core"
  },
  "addition": {
    "tag":"forge:storage_blocks/steel"
  },
  "result": {
    "item": "superbwarfare:container",
    "nbt": {
      "EntityType": "superbwarfare:mk_42"
    }
  }
}