Section 17 Vehicles, aircraft, vessels and associated transport equipment 87 Vehicles others than railway or tramway rolling-stock, and parts and accessories thereof 87 16 Trailers and semi-trailers; other vehicles, not mechanically propelled; parts thereof Commodity Code Description 87 16 10 - Trailers and semi-trailers of the caravan type, for housing or camping 87 16 20 - Self-loading or self-unloading trailers and semi- trailers for agricultural purposes 87 16 31 - - Tanker trailers and tanker semi-trailers 87 16 39 - - Other 87 16 40 - Other trailers and semi-trailers 87 16 80 - - - Wheelbarrows 87 16 90 - - - Of wheelbarrows