... high rigidity, transparency,chemical stability. COE:3.3 Regular1.diameter of our glass rod is 3-42mm, we can customize the ... splendid features enable it to be widely used in the field of solar energy,chemical industry, pharmaceutical packaging, electric light source, ... High borosilicate glass products: We can provide a full range of borosilicate glass products, such as borosilicate tube, glass rods ...