See what countries the US trades with for different products. It shows how much we import and export in dollars. If you can't figure out where your product is, try Miscellaneous Manufactured Commodities.
Use these sources to see what the existing and potential markets for your products are.
REF HD 7022.C68
European Marketing Data and Statistics
REF HA 1108. E87
International Marketing Data and Statistics
REF HA 42 .I56