From a photo of the goods to a customs code you can defend.

Varco walks the tariff tree applying the General Rules of Interpretation and the official notes, cites the source at every step, and checks the answer against 122,874 binding European rulings and 70,930 US CBP rulings.

And when the evidence is not enough, it does not invent. It stops, says which piece of information is missing, and asks for it.