25x25mm 1200 Lines Thickness 6mm K9 Glass Flat Diffraction Grating for Monochromatic Light Research Teaching Physics Experiment

25x25mm 1200 Lines Thickness 6mm K9 Glass Flat Diffraction Grating for Monochromatic Light Research Teaching Physics Experiment
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sku: 1005005848477680
$99.00
Shipping from: China
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