high power traffic light Fresnel lens round PMMA fresnel lens diameter 300mm focal length 220mm solar energy fresnel lens
Характеристики
diameter: | 300mm |
Focal Length: | 220mm |
Model Number: | MYlens-300-220 |
Shape: | Plano |
Structure: | plane |
Usage: | Optical |
Материал: | PMMA |
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