Spain Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Luxembourg was US$12.46 Thousand during 2023, according to the United Nations COMTRADE database on international trade. Spain Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Luxembourg - data, historical chart and statistics - was last updated on May of 2024.