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Rvfm double convex spherical diameter 50mm fl 1000mm
rvfm double convex spherical diameter 50mm fl 1000mm
Rvfm double convex spherical diameter 50mm fl 1000mm
50mm diameter double convex spherical lenses rvfm ph300679 double convex spherical lens with a focal length of 1000mm rvfm double convex spherical diameter 50mm fl 1000mm

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