CPV code 50532100 designates Repair and maintenance services of electric motors in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
50532100 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 50532000 (Repair and maintenance services of electrical machinery, apparatus and associated equipment).