CPV code 44523000 designates Hinges, mountings and fittings in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
44523000 sits under 44520000 (Locks, keys and hinges) and groups 3 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.