Quartz, cover slip for microscope slide, fused, 25.4mm (1.0in) dia x 0.15-0.25mm (0.006-0.01in) thick from Thermo Fisher Scientific

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Quartz, cover slip for microscope slide, fused, 25.4mm (1.0in) dia x 0.15-0.25mm (0.006-0.01in) thick