Guinea Exports of screws, bolts, nuts, coach screws, screw hocks, rivets, of iron or steel to Mali was US$140 during 2013, according to the United Nations COMTRADE database on international trade. Guinea Exports of screws, bolts, nuts, coach screws, screw hocks, rivets, of iron or steel to Mali - data, historical chart and statistics - was last updated on May of 2024.