• 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.

    透镜材质水晶玻璃特殊工艺处理具有透光性能紫外线功能

    youdao

  • 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.

    透镜材质水晶玻璃特殊工艺处理具有透光性能紫外线功能

    youdao

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