Placing on the market and entry into service of parts or equipment that may pose a serious risk to the correct functioning of essential systems
Páirteanna nó trealamh a d’fhéadfadh riosca tromchúiseach a chothú do dhea-fheidhmiú córas atá fíor-riachtanach a chur ar an margadh agus a chur i seirbhís