PSK

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Glass Type Glass Code nd νd Specific Gravity Coloring
618633 1.618000 63.34 3.56 380/330
603654 1.603000 65.44 3.52 370/320
593679 1.593190 67.90 4.10 360/310
593670 1.593490 67.00 3.28 350/290
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