Council Regulation (EEC) No 1818/79 of 16 August 1979 re-establishing the levying of customs duties on nails, tacks, staples, hook-nails, corrugated nails, spiked cramps, studs, spikes and drawing pins of iron or steel, etc., falling within heading No 73.31 and originating in Romania, to which the preferential tariff arrangements set out in Council Regulation (EEC) No 3156/78 apply