PSK

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Glass Type Glass Code nd νd Specific Gravity Coloring
618633 1.618000 63.34 3.56 375/315
603654 1.603000 65.44 3.52 345/265
593679 1.593190 67.90 4.10 355/275
593670 1.593490 67.00 3.28 345/290
628592 1.628460 59.17 4.05 390/350
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