Scientists accidentally set up noctilucent stones to exceed the diamond
Scientists have discovered that a new carbon based substance can form a diamond like crystal and can exceed the diamond in terms of hardness and production. This new type of artificial gemstone is mag
GGII:2017 2018 - 2018 LED sapphire report catalogue
As the most important LED chip substrate, sapphire has now occupied more than 95% of the LED chip market.
With the rapid development and extension of the LED industry chain in China, the international
The world's largest artificial sapphire crystal is born in our country
According to Science Daily, 13, learned from the Hohhot municipal Party Committee Propaganda Department of Saihan, the world's largest 450 kg of large size and high quality sapphire crystal production