Commission Regulation (EEC) No 784/79 of 19 April 1979 re-establishing the levying of customs duties on sacks and bags, of a kind used for the packing of goods, falling within subheadings 62.03 B I a), ex b) and ex II and originating in developing countries, to which the preferential tariff arrangements set out in Council Regulation (EEC) No 3157/78 apply.