CPV code 34911100 designates Trolleys in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
34911100 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 34911000 (Horse or hand-drawn carts and other non-mechanically-propelled vehicles).