Currency
1 Aluminum = 6x Empty Soda Cans
1 Tin = 6x Empty Tin Cans

 

2 Aluminum = 1 Tin
2 Tin = 1 Copper
30 Copper = 1 Silver
30 Silver = 1 Gold

1 Gold = 30 Silver / 900 Copper / 1.800 Tin / 3.600 Aluminium / 10.800 Empty Tin Cans / 21.600 Empty Soda Cans

Trader City Price List
first value = buy
second value = sell