CPV code 42931000 designates Centrifuges in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
42931000 sits under 42930000 (Centrifuges, calendering or vending machines) and groups 1 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.