Commission Regulation (EEC) No 2347/77 of 25 October 1977 re-establishing the levying of the customs duties on angles, shapes and sections, of iron and steel, falling within subheadings 73.11 A II, III, IV a) 2 and IV b), originating in Romania to which the preferential tariff arrangements set out in Council Regulation (EEC) No 3021/76 apply