Identifying the source of your supplied metals is the main purpose of Conflict Minerals Compliance. A Smelter is the first stop for raw materials once they have been mined or recycled by the provider.
The first airplane to take flight was built by the Wright brothers  in Ohio USA and was transported first to North Carolina and flown  for its first time there.
In Russia, Igor Sikorsky built the first air giant, a four-engine plane that was the forerunner of the multiengine strategic bombers of World War I. The French military began experimenting with aerial bombing in 1912, as did the British in 1913.