CPV code 34224100 designates Parts of trailers and semi-trailers in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
34224100 is a leaf code — the most specific level of its branch — so it can be used directly as the main CPV code of a contract notice. If it does not quite fit, check the neighbouring codes under 34224000 (Parts of trailers, semi-trailers and other vehicles).