Insulated cup

Material and technology
Liner material: The liner is usually made of high purity silver. such as silver 990 or silver 999.
Production process: First. the selected silver raw materials are melted. quenched. forged. inner liner shaping. polishing and other complex processes. Some silver cups are made of pure silver inner liner and imported transparent high-strength polycarbonate (PC) commonly known as aviation glass by injection molding; Some combine silver