Congo Imports of pebbles, gravel, flint, macadam of slag, tarred macadam from Tanzania was US$52.16 Thousand during 2015, according to the United Nations COMTRADE database on international trade. Congo Imports of pebbles, gravel, flint, macadam of slag, tarred macadam from Tanzania - data, historical chart and statistics - was last updated on June of 2024.