Section 17 VEHICLES, AIRCRAFT, VESSELS AND ASSOCIATED TRANSPORT EQUIPMENT 87 VEHICLES OTHER THAN RAILWAY OR TRAMWAY ROLLING-STOCK, AND PARTS AND ACCESSORIES THEREOF 87 16 PARTS THEREOF. 87 16 20 SELF-LOADING OR SELF-UNLOADING TRAILERS AND SEMI-TRAILERS FOR AGRI.PURPOSE Commodity Code Description 87 16 20 00 SELF-LOADING OR SELF-UNLOADING TRAILERS AND SEMI-TRAILERS FOR AGRI.PURPOSE