Successful cases

Check out the successful application of the optical network solutions in various industries to understand customers 'evaluation of the optical network.


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About us


Transfer the research and development of core and cutting-edge technologies into productivity, promoting China's national optica enterprises to support and lead the healthy development of high-end optical industry.

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  • Contact Us

    Beijing Guangruntong Technology Development Co., Ltd.(Beijing Headquarters)

  • Product Purchase and Consultation

    Interested in purchasing Guangruntong products and services, please contact us:400-058-1019/+8613552356892

  • Product after-sales service

    For technical support, please contact us:010-51626348-8016

  • Join GRT

    If you want to join the GRT team, please contact your email address:hr@grt-china.com

  • Beijing Headquarters Office


    Address:Room 2515-2516, 25th Floor, Block A, Digital Building, No. 2 Zhongguancun South Street, Haidian District, Beijing, 100086,China

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