· 30 Iron Ore > 10 Iron Ingot. > 5 Copper Coils. So for the raw materials you' get 314+210 (for the industrial engine) if you sold them to the merchant. But if you make a generator you get 3600, or 3076 more. If you wait for a good percentage (I've seen up to 130 already) you might even get 4500 for one ^^. #6.