CPV code 42131300 designates Christmas trees and other assemblies of valves in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
42131300 sits under 42131000 (Taps, cocks and valves) and groups 3 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.