Commission Regulation (EEC) No 898/80 of 11 April 1980 re-establishing the levying of customs on goat and kidskin leather, except leather falling within heading No 41.06 or 41.08, other, other, falling within subheading 41.04 B II and originating in developing countries, to which the preferential tariff arrangements set out in Council Regulation (EEC) No 2789/79 apply