Glass Catalogues Download
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CDGM: http://www.cdgmgd.com/go.htm?k=Download&url=downList
Schott: https://www.schott.com/en-us/products/optical-glass-p1000267/downloads
Hoya: https://www.hoya-opticalworld.com/english/datadownload/index.html
Ohara: https://www.oharacorp.com/catalog.html
Corning: https://www.corning.com/worldwide/en/products/advanced-optics/resources/product-information.html
