Commission Regulation (EEC) No 2774/78 of 28 November 1978 re-establishing the levying of customs duties on plaiting materials bound together in parallel strands or woven in sheet form, including matting, mats and screens; straw envelopes for bottles, falling within heading No ex 46.02, originating in developing countries, to which the preferential tariff arrangements set out in Council Regulation (EEC) No 2705/77 apply