Copper

 is a Rare Ore Product. Obtained using an Arc Furnace.

Stats

 * Weight: 0.1
 * Value: 4

Obtaining

 * Robots: Mr. Handy
 * Laser Trip Wire

Scrap:
 * Energy Weapon Parts
 * Pipe Weapon Parts
 * Vehicle Salvaging
 * Ammunition (Weapons Lab)

Weapon Scrap:
 * Copper Pipe

Production:
 * Steel Yard: Miscellaneous Scrap
 * Mining: Dolomite, Granite

Uses
Production:
 * Energy Cells (Tech Factory)
 * Alloy: Aluminum [Grade-2], Alloy: Steel [Grade-2], Alloy: Titanium [Grade-2]

Crafting Ballistic Ammunition:
 * .308
 * .357
 * .44
 * .45
 * .45-70
 * .50 BMG
 * .50 AE
 * 10mm
 * 12.7mm
 * 7.62mm