CPV code 34631000 designates Parts of locomotives or rolling stock in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
34631000 sits under 34630000 (Parts of railway or tramway locomotives or rolling stock; railways traffic-control equipment) and groups 4 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.