Regulation (EEC) No 939/73 of the Commission of 5 April 1973 reintroducing the charging of Common Customs Tariff duties on glazed setts, flags and paving, hearth and wall tiles, falling within heading No 69.08 originating in South Korea, covered by the preferential tariff arrangements set out in Council Regulation (EEC) No 2762/72 of 19 December 1972