Slovakia Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Estonia was US$55.37 Thousand during 2018, according to the United Nations COMTRADE database on international trade. Slovakia Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Estonia - data, historical chart and statistics - was last updated on June of 2024.