Optical Lens, Optical Windows, Optical Mirrors manufacturer / supplier in China, offering Dia. 30/50/70/150/160/180mm Fresnel Lens Projector Lense Fresnel LED Lens Solar Concentrator for Stage Lamp Flashlight, Optical Grade Polished High Hardness Sapphire Crystal Glass Rod Lens, D83mm Ca80mm F800mm Ar Coaring Achromatic Doublet Lens for Telescope and so on.
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