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Forming of optical glass element
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Mold and molding process
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Mold and molding method
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Production of optical element
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Method for forming glass optical element
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Die for forming glass and its production
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Method for forming glass optical element
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Production of glass optical element
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Production of glass optical element
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Production of glass optical element
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Mold for forming glass lens its production and glass lens forming method
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Measuring method of thickness of molded material
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Production of glass optical element
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Flotation softening method for glass material, manufacture of optical device and optical device
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Forming die for glass formed article
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Molding of glass optical element and pressing device used for the same method
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