302040 Parts of railway or tramway locomotives or rolling-stock/ fixtures and fittings and parts thereof/ mechanical traffic control equipment

30204030 Parts of locomotives or rolling-stock 30204050 Mechanical or electromechanical signalling, safety or traffic control equipment for roads, inland waterways, parking facilities, port installations or airfields 30204060 Mechanical signalling, safety or traffic control equipment for railways or tramways/ parts of mechanical (including electromechanical), signalling, safety or traffic control equipment for railways, tramways, roads, inland waterways, parking facilities, port installations or airfields