CPV code 42214200 designates Dryers for agricultural products in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
42214200 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 42214000 (Cooking ovens, dryers for agricultural products and equipment for cooking or heating).