CPV code 14730000 designates Chromium, manganese, cobalt, yttrium and zirconium in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
14730000 sits under 14700000 (Basic metals) and groups 5 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.