Namibia Exports of glass in balls (other than microspheres), rods or tubes, unworked to Botswana was US$460 during 2014, according to the United Nations COMTRADE database on international trade. Namibia Exports of glass in balls (other than microspheres), rods or tubes, unworked to Botswana - data, historical chart and statistics - was last updated on May of 2024.