Copper cable

Copper cable is an in-game item listed among required delivery items for the Rocket silo progress levels in the Factorio campaign/wiki data. The Japanese source lists item names in Japanese alongside delivery quotas for each Silo level; the entry for copper cable appears as 銅線, which corresponds to the English term Copper cable. The only explicit, sourced use recorded here is as a required delivery item for Silo Level 5: the Silo requires 40 Copper cable to complete Level 5. The same Silo-level list documents many other delivery items for other levels (iron plate, iron gear wheel, electronic circuit, Automation science pack, Logistic science pack, Fast transport belt, Steel plate, Grenade, Plastic bar, Advanced circuit, Engine unit, Sulfur, Wall, Military science pack and Chemical science pack), but Copper cable is present only for Level 5 in the provided data. Practical notes:

• Copper cable appears by name in the Silo delivery requirements as Copper cable, and the Silo Level 5 demand is 40 units.
• No additional recipe, crafting facility, throughput, or other item interactions for Copper cable are specified in the supplied sources; any other uses or production details are not documented here and therefore are not asserted. This article strictly reflects the supplied multilingual wiki sources and does not invent or extrapolate item recipes or additional uses beyond what those sources explicitly list.