CPV code 42418210 designates Overhead monorail equipment in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
42418210 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 42418200 (Monorail or ski-lift equipment).