Commission Regulation (EEC) No 3160/83 of 9 November 1983 re-establishing the levying of customs duties on ethanolamine, diethanolamine, triethanolamine and their salts, falling within subheadings 29.23 A I and ex II and originating in Brazil, to which the preferential tariff arrangements set out in Council Regulation (EEC) No 3377/82 apply.