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Diffraction Grating
20741.05
Art NO.: 20741.05   50 lines/mm  50*50*2mm
Art NO.: 20741.06   100 lines/mm 50*50*2mm
Art NO.: 20741.07   300 lines/mm 50*50*2mm
Art NO.: 20741.08   600 lines/mm 50*50*2mm

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