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  • National Aperture, Inc.
    National Aperture, Inc.
    603-893-7393
    16 Northwestern Dr, 03079-4810  Salem

    National Aperture, Inc. is the leading manufacturer of precision micro-apertures, pinholes, slits, bar patterns and custom configurations. Our specialty is micro-miniature pinholes and slits. Standard pinholes range in size from 0.5µm to 1000 µm with custom sizes available. Standard slits range in …