Belgium Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to French Polynesia was US$13 during 2020, according to the United Nations COMTRADE database on international trade. Belgium Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to French Polynesia - data, historical chart and statistics - was last updated on May of 2024.