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OEM High-Clarity Crown Glass Optical Lenses For Microscope CondensersOEM High-Clarity Crown Glass Optical Lenses For Microscope Condensers Material: Core Substrate: Precision-engineered crown glass, primarily alkali-lime silicate compositions (e.g., Schott N-BK7, Hoya BSC7, ... Read More
2025-06-08 13:54:13
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