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

High-concerned chemical：None Model Number：300mm Optical Plastic Fresnel Condensing Lens Structure：Fresnel Material：Plastic Brand Name：JLLSMCMGGX Origin：Mainland China Shape：Plano Use：Optical Certification：NONE

High-concerned chemical: None Model Number: 300mm Optical Plastic Fresnel Condensing Lens Structure: Fresnel Material: Plastic Brand Name: JLLSMCMGGX Origin: Mainland China Shape: Plano Use: Optical Certification: NONE