For precision grinding and polishing spherical / plane surface of optical glass, quartz glass, crystal, electrical elements and other brittle materials. 1.Each main spindle and each swing frame are ...
Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Circular iron tool from the shop of ...
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