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Once the mold is prepared, the glassmaking process begins. Raw glass materials, such as silica, soda ash, and lime, are mixed and heated in a furnace until they reach a molten state, typically around 1,400 to 1,600 degrees Celsius. After reaching the desired temperature, the molten glass is carefully poured into the prepared sand mold.

4. Stamping Process Once the die reaches the desired temperature, the plastic part is positioned beneath it and pressed against the die. The combination of heat and pressure causes the foil to adhere to the plastic surface precisely where the design is etched into the die.