150x100mm Focal Length 110mm PMMA Rectangle Concentric Threaded Optical Fresnel Lens for LED Testing Instruments Lenses

160x110mm Focal Length 110mm PMMA Rectangle Concentric Threaded Optical Fresnel Lens Projector Projection Lenses

112x73mm Focal Length 100mm PMMA Rectangle Concentric Threaded Optical Fresnel Lens for Book Page Magnifying LED Lenses

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250x170mm Focal Length 530mm PMMA Concentric Threaded Rectangle Fresnel Lens for DIY Optical Lenses Outdoor Tools

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150x105mm Focal Length 160mm PMMA Concentric Threaded Rectangle Fresnel Lens for DIY Optical Lenses

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100x80mm Focal Length 130mm PMMA Rectangle Concentric Threaded Fresnel Lens Projector Solar Energy Condenser Focus Lenses

190x120mm Focal Length 240mm PMMA Rectangle Concentric Threaded Fresnel Lens Stage Lights Projector Lenses

115x62mm Focal Length 330mm PMMA Rectangle Concentric Threaded Optical Fresnel Lens for Reading Newspaper Book

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110x80mm Focal Length 130mm PMMA Rectangle Concentric Threaded Fresnel Lens Projector Solar Energy Condenser Focus Lenses

Focal Length 220mm PMMA Rectangle Concentric Threaded Fresnel Lens Solar Energy Condenser Focus Lenses

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183x110mm PMMA Rectangle Concentric Threaded Optical Fresnel Lens Solar Energy Condenser Projector Lenses

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140x110mm PMMA Rectangle Concentric Threaded Optical Fresnel Lens Magnifying Projection Lenses

250x270mm Focal Length 250mm PMMA Concentric Threaded Rectangle Fresnel Lens for Making Fire Outdoor Tools

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100x70mm PMMA Rectangle Concentric Threaded Optical Fresnel Lens Book Page Magnification Projector Lenses

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