Natural resource production chains

Metallurgy: iron ore → iron → steel → weapons, vehicles and tools. Oil: crude oil → refinery → gasoline, diesel, lubricant and plastic. Live recipes:
• Iron ore processing: 3 Iron ore → 2 Iron
• Steel smelting: 1 Coal + 2 Iron → 2 Steel
• Gasoline: 4 Crude oil → 3 Gasoline
• Diesel fuel: 4 Crude oil → 3 Diesel
• Industrial rubber: 2 Crude oil + 1 Gas → 2 Rubber
• Lubricant: 3 Crude oil → 2 Lubricant
• Plastic production: 3 Crude oil → 2 Engineering plastic