durchmesser 500mm runde form acryl materielle große fresnel-linse
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Optical Linear Fresnel Lens PMMA 185x50mm Focal Length 150mm Projector Fresnel Lens Solar Energy Concentrator Lenses 187x50mm - AliExpress
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2 pcs diameter 60mm focal length 25mm 27mm 30mm 40mm 50mm 60mm 70mm 80mm PMMA round fresnel lens - AliExpress
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Four-Bros Lighting FLP 6 Inch Fresnel Glass Lens with White Plastic Trim-60 Watt Max. -for Wet Locations-Shower Can Light Trim-Ul Listed
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Vy Optics Wholesale High Quality 500mm PMMA Linear Fresnel Lens - China Fresnel Lens, Linear Fresnel Lens
1-Pack Round Fresnel Lens Magnifier Size:Φ100mm, Thickness:2mm, Material: PMMA (Acrylic) High Light Transmittance, High Efficiency in Focusing, High
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Fresnel Lens, Diameter 100mm (4''), Focal Length 50mm, Acrylic Lens (not Glass), for Physics Classroom,Solar Heating,Magnifiying. (Focal Length 50mm)
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Big linear Fresnel lens Square Lens 500*500 mm Fresnel Lens Focal length 500mm solar collecting,free shipping
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400mm Fresnel-linse Durchmesser Große Optische PMMA Kunststoff Große Solar Herd Brennweite 240mm Solar Konzentrator Große Vergrößerungs glas - AliExpress
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Optical Linear Fresnel Lens PMMA 185x50mm Focal Length 150mm Projector Fresnel Lens Solar Energy Concentrator Lenses 187x50mm - AliExpress
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dia 500mm round shape acrylic material
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500mm Fresnel Lens With Advance Clarity
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durchmesser 1000mm runde fresnel-linse, große fresnel-linse für solar kocher
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Großhandel 500mm fresnel linse für Brillen und optische Instrumente - Alibaba.com