First of all, we must understand what the raw materials of cosmetic glass bottles are made of. They are composed of two layers of glass inside and outside. What is the raw material of the glass: The main raw material is quartz sand, what is quartz sand, and the chemical name is silica, Can be extracted from the sand used in construction, river sand, sea sand, weathered sand, etc.
In addition to the main component silica, it also contains iron oxide, clay, mica, and organic impurities. The high grade is due to the high content of silica in the quartz sand.