Kazakhstan Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Slovakia was US$63.8 Thousand during 2015, according to the United Nations COMTRADE database on international trade. Kazakhstan Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Slovakia - data, historical chart and statistics - was last updated on May of 2024.