CPV code 34630000 designates Parts of railway or tramway locomotives or rolling stock; railways traffic-control equipment in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
34630000 sits under 34600000 (Railway and tramway locomotives and rolling stock and associated parts) and groups 2 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.