Section 17 VEHICLES, AIRCRAFT, VESSELS AND ASSOCIATED TRANSPORT EQUIPMENT 87 Vehicles other than railway or tramway rolling-stock, and parts andaccessories thereof 87 16 TRAILERS AND SEMI-TRAILERS; OTHER VEHICLES, NOT MACHANICALLY PROPELLED 87 16 20 Self-loading or self-unloading trailers and semi-trailers for agricultural purpo Commodity Code Description 87 16 20 00 Self-loading or self-unloading trailers and semi-trailers for agricultural purpo