60mm Condenser lens Fresnel Lens Optical PMMA Fresnel Lens Focal Length 25mm 27mm 30mm 40mm 50mm 60mm 70mm 80mm 2pcs

60mm Condenser lens Fresnel Lens Optical PMMA Fresnel Lens Focal Length 25mm 27mm 30mm 40mm 50mm 60mm 70mm 80mm 2pcs

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