Serbia Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Romania was US$796.14 Thousand during 2023, according to the United Nations COMTRADE database on international trade. Serbia Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Romania - data, historical chart and statistics - was last updated on May of 2024.