Section 17 VEHICLES, AIRCRAFT, VESSELS AND ASSOCIATED TRANSPORT EQUIPMENT 86 RAILWAY OR TRAMWAY LOCOMOTIVES, ROLLING-STOCK AND PARTS THEREOF; RAILWAYOR TRAMWAY TRACK FIXTURES AND FITTINGS AND PARTS THEREOF; MECHANICAL(INCLUDING ELECTRO-MECHANICAL) TRAFFIC SIGNALLING EQUIPMENT OF ALL KIN 86 07 PARTS OF RAILWAY OR TRAMWAY LOCOMOTIVES OR ROLLING-STOCK. 86 07 30 HOOKS AND OTHER COUPLING DEVICES, BUFFERS AND PARTS THEREOF Commodity Code Description 86 07 30 00 HOOKS AND OTHER COUPLING DEVICES, BUFFERS AND PARTS THEREOF