On August 1, 2019, Qin Jingkai--chairman took the members to GBV Daguangming Optical Company to test the optical parameters of glasses.

16 Aug, 2019
On August 1, 2019, Qin Jingkai--chairman took the members to GBV Daguangming Optical Company to test the optical parameters of glasses.At the same time, a series of related parameters such as spectral transmittance, anti-blue light test were tested.


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HANGZHOU HOPOO LIGHT&COLOR TECHNOLOGY CO.,LTD.

Hangzhou Hoptek Technology Co.,Ltd located in Great Economic Circle in Hangzhou.High-tech enterprises engaged in research and development, production, sales and service of optical testing equipment. The company …

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