50300000 Repair, maintenance and associated services related to personal computers, office equipment, telecommunications and audio-visual equipment Repair and maintenance services
50300000 Gwasanaethau atgyweirio, cynnal a chadw a gwasanaethau cysylltiedig mewn perthynas â chyfrifiaduron personol, cyfarpar swyddfa a chyfarpar telathrebu a chlyweledol