As a start, you should see the description of the product published in the notice of initiation of an anti-dumping and anti-subsidy investigation.

 

You can also compare CN codes (eight-digit codes) with the ones for the products you are importing. If you are not sure about the correct CN code for your products, you can consult Annex I to the Combined Nomenclature, which gives a short definition of each code. This document is updated every year and published in the Official Journal. The latest version of this document can be found at: https://ec.europa.eu/taxation_customs/node/1005_en

 

In addition, every importer has the right to ask the competent customs authorities in the Member States concerned for advice on the correct classification. If any element of doubt remains, you are recommended to apply for a binding tariff information decision from the competent customs authorities. Upon a detailed description of the good, this will provide you with the correct classification code. Before asking for a binding tariff information decision, you may also consult the following database:

http://ec.europa.eu/taxation_customs/dds2/ebti/ebti_consultation.jsp?Lang=en

 

Source: “TDI Trade defence instruments, Anti-dumping & Anti-subsidy - A Guide for Small and Medium-Sized Businesses” by the European Commission