Color 3.3 Borosilicate Glass tube 1)OD:8mm-315mm 2)WT:1mm-9mm 3)Color:black,white,blue, ... glass tubing and rods. The OD of glass is between 8mm and 400mm, and that of the glass rods is from ... , and USA and other countries. Color 3.3 Borosilicate Glass Tube