These are the high borosilicate glass for making lamp shade. Some special technology can be added to the glass, such as coating, hole drilling, sandblasting and silk screen printing.

• Can resist temperature from 600 to 700 degrees centigrade
• Can resist first class acid and alkali
• Density: 2.23+/-0.02G/CM3
• Expansion coefficient: (3.3+/-0.5)x10-7/k