How is the production of high-end glass wine bottles different?

High-end glass wine bottles are the most popular material now, because people's living standards have improved in recent years, whether it is the need to expand interpersonal relationships or to show one's own taste, high-end glass wine bottles are naturally indispensable for wine containers.
Liquor bottles on the market are divided into high, middle and low grades, so what is the difference in the production of high-grade glass wine bottles?
At present, there are core method and mosaic method. The core method is to use a mixture of sand and clay to make a solid inner mold, and then apply the molten glass to the surface of the sand mold, and use commonly used colored waves as decorations, remove the sand core after cooling, high-grade glass wine The bottle is made.
The mosaic method also uses a mixture of sand and clay to make a solid inner shape. Many glass rod slices are pasted on the sand shape, and then heated and fused to form a vessel, which also forms a pattern, so it is more decorative.
In addition to the two methods, there are casting methods, and casting methods can be divided into three types: mold casting, mold pressing and mold firing.