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5-Pack Fresnel Lenses Diameter 80mm(3.15) Focal Length 80mm Acrylic Lens (not Glass) for Solar Heating,Equipment Lens,Visual Education (Focal Length 80mm) : Industrial & Scientific
Round Borosilicate glass Fresnel lens Spotlight Diameter 80-250mm for Stage Lamp Magnifier Threaded Lenses - AliExpress
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Round Borosilicate glass Fresnel lens Spotlight Diameter 80-250mm for Stage Lamp Magnifier Threaded Lenses - AliExpress
Wholesale 60mm diameter fresnel lens With A Variety Of Different Colors