31991R0639•Commission Regulation (EEC) No 639/91 of 14 March 1991 ending the charges against the tariff ceilings opened, in the framework of generalized tariff preferences, by Council Regulation (EEC) No 3897/89 in respect of certain textile products originating in Thailand, Pakistan and China, and repealing Regulations (EEC) No 3891/90 and (EEC) No 3892/90