Regulation (EEC) No 1743/75 of the Commission of 7 July 1975 re-establishing the levying of customs duties on men's and boys' under garments, including collars, shirt fronts and cuffs, of cotton fabric, falling within heading No ex 61.03, originating in developing countries, to which the preferential tariff arrangements set out in Council Regulation (EEC) No 3046/74 of 2 December 1974 apply