{
  "type": "railcraft:rolling",
  "key": 
  {
    "r": {"item": "minecraft:redstone"},
	"a": {"item": "immersiveengineering:wire_aluminum"},
	"t": {"item": "immersiveengineering:stick_treated"}
  },
  "pattern": 
  [
	" a ",
	"rtr",
    " a "
  ],
  "processTime": 200,
  "result": {
    "item": "immersiveengineering:wirecoil_redstone",
	"count": 4
  }
}