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ZnSe Focus Lens USA CVD Lens Dia.12/15/18/20 FL25.4/38.1/50.8/63.5/76.2/101.6/127/160mm for CO2 Laser Engraving Cutting Machine

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300mm Large Optical PMMA Plastic Big Solar Fresnel Lens Focal Length 120 220 400 360mm Solar Concentrator Magnifying Glass 1PC