[Product Material]: High Borosilicate Green Environmental Protection Glass
[coefficient of expansion]: 3.3 [Instantaneous Temperature Difference]: -20 to 150
[processing technology]: hand-made
[Product Advantage]: 1. It has strong mechanical strength and strong performance on the change of quench and heat temperature.
2. It has strong corrosion resistance to acid-base and other chemicals.
3. Easy to clean, and does not absorb the taste of tea.
4. Elegant shape, crystal clear, soup color panoramic view, enhance the quality of life.