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Zoom lens
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Low-temperature antifreezing preservation method for resin in raw materials for glasses
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Sealing fire-resistant preservation method for resins in raw materials used by lens during transportation process
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Running water prepares eyeglass and oils the method for water used by dry preposition washing step
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Method using well water to prepare water for water washing procedure before oiling and drying of lens
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Nondestructive cleaning method for optical lens
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Anti-fog type wiping wet tissue used for optical lens
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Optical lens stain remover and preparation method thereof
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Optical lens coating film composition and processing method thereof
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Glass sheet for optical lens and preparation method thereof
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Glass used for anti-fogging optical lens
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Cleaning fluid for optical lens and preparation method thereof
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