Various kinds of glass bottles, glass cans and glasses made of glass materials are numerous. In life, we can see all kinds of glass products at any time and place, and many food and pharmaceutical packages are also made of glass. Why do many manufacturers like to use glass materials to make these packaging because glass products do not have other chemicals such as plastics?. Glass products must be melted by thousands of degrees of high temperature to produce molding. Many chemicals have been disposed of by high temperature in this process, which has avoided a lot of trouble. And another advantage of glass is its transparency. It can clearly see the appearance of things in glass bottles. It is also an important aspect of glass packaging that people like.