909-20 Neutralization Lens Set/2
Two 38mm spherical lenses; one is a double concave, the other a double convex, each with a focal length of 150mm. When placed together the net focal length is zero. 1-1/2" x 1-1/2" x 1/4"; 0.005 lb.
We have 70 skillful operators, 5 machine mechanics and 31 quality inspectors, total annual output capacity in design can reach 130 millions sets.
Earth & Space Science
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