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Introduction to Ancient Glass: The main component of ancient glass is silicon dioxide, but it differs from ordinary glass in its composition, and often contains other metal oxides, such as copper oxide and iron oxide. These metal oxides are the key factors in forming the color of glass. It is made by a high-temperature melting process and emphasizes manual processing. The production process of glass is complex, including the melting and manual shaping of multiple metal oxides, making each glass product unique. Because the main component is silicon dioxide, if the quality inspection department judges the material based on the component (silicon dioxide), the test shows that it belongs to glass, those who are concerned should avoid it.

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