What are keys made of?
Keys take brass and nickel directly. Trace them back and you pass 14 made things on the way to 13 raw materials.
How keys are made See it on the map
What goes straight in
From the ground: 13 raw materials
- Nickel ore through nickel
- Copper ore through brass, copper
- Water through brass, copper
- Air through brass, zinc
- Zinc ore through brass, zinc
- Lead ore through brass, lead
- Tin ore through brass, tin
- Crude oil through brass, aluminum
- Coal through brass, aluminum
- Sulfur through nickel, sulfuric acid
- Bauxite through brass, aluminum, alumina
- Rock salt through brass, aluminum, alumina, caustic soda
- Limestone through brass, aluminum, alumina, quicklime