... Glass Limited Company, The main production is are borosilicate glass tubing & rod, the OD of article glass is between 8mm and 400mm, and ... can produce 16500 metric ton in every year. The production is exported in many countries, such as Japan, India, and USA ... 300mm-400mm successfully, which complement some blanks in technology. special size of high Borosilicate Glass 3.3 Triangle rods