setIcon(<railcraft:blast_furnace>)
setTitle("Blast Off")
setDescription("Make a blast furnace block. 34 of these assembled in a 3x3x4-high hollow cuboid become a Blast Furnace.")

addParent("industry:railcraft/coke_oven")

criteria = addCriteria("blast_furnace", "minecraft:inventory_changed")
criteria.addItem(<railcraft:blast_furnace>)
setPos(64,191)