CPV code 34223000 designates Trailers and semi-trailers in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
34223000 sits under 34220000 (Trailers, semi-trailers and mobile containers) and groups 4 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.