Glass secondary products are deep-processed glass, which is the use of a formed flat glass (float glass, ordinary lead flat glass, flat drawn glass, calendered glass) as the basic raw materials, according to the requirements of use, the use of different processing processes made of glass products with specific functions.

Since the composition of glass is mainly silicon dioxide, and silicon dioxide is difficult to decompose naturally, in the natural environment, it takes 1 million years, so in order to protect the environment, we should pay attention to the use of glass products, to have the awareness of recycling, each recycling of a glass bottle to save enough energy to make 100 watt light bulb for 4 hours glass process. For nearly half a century, glass art design has penetrated into people's lives with unprecedented depth and breadth. The simultaneous use of different types of glass and production processes in modeling is far more than at any time in the history of glass. Among them, as an important branch of the field of glass plastic art, graphic art glass shines brightly in the field of contemporary glass art design, becoming a unique medium for artists and designers to create art.

The characteristics of glass determine that it can be subjected to a variety of processing methods to form a rich shape. The main raw materials of glass production are glass forming body, glass adjuster and glass intermediate, and the rest are auxiliary raw materials. The main raw materials guide the oxides, intermediate oxides and out-of-network oxides into the glass to form the network; Auxiliary raw materials include clarifying agent, flux, emulsion, coloring agent, decolorizing agent, oxidant and reducing agent, etc.