Ore (Copper)/3/en
From Unofficial Stationeers Wiki
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Copper Ore can be turn into Copper Ingot using an Arc Furnace or Furnace. It can be turned into Copper Ingot by smelting it in the Furnace or Arc Furnace. Copper Ore can also be combined with equal amounts Nickel Ore in the Furnace to create Constantan Ingot.