抗uv(紫外线)的专用透镜。
二次配光透镜材质为水晶玻璃，经特殊工艺处理，具有更佳的透光性能和抗紫外线功能。
The secondary light distribution lens' material is made of crystal glass. After special fabrication processing, it has much better function on transmission of light and anti-ultraviolet rays.
二次配光透镜材质为水晶玻璃，经特殊工艺处理，具有更佳的透光性能和抗紫外线功能。
The secondary light distribution lens' material is made of crystal glass. After special fabrication processing, it has much better function on transmission of light and anti-ultraviolet rays.
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