九游会J9·(中国)真人游戏第一品牌

    Welcome to Keystone

    • Company Profile

      Keystone Technology focuses on the transformation of business structure and the promotion of independent research and development projects, focusing on the research and development and innovation of core products, including the development and production of LCD panels and OLED functional devices, the ...
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    • Company Profile

      Chengdu Guanshi Technology Co., Ltd. is a wholly-owned subsidiary of Nanjing Guanshi Technology Co., Ltd. with a total investment of 150 million yuan and an area of 50 mu. It mainly provides production and sales services for customers in Southwest China, including functional devices and polarizers in semiconductor and display industries.
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    • Company Profile

      Xianyang Guanshi Technology Co., Ltd. was established in October 2017 and officially put into operation in the second half of 2018. It is located in Gaoke Third Road, Xianyang City, covering an area of 5000 square meters Since its establishment in 2018, Xianyang Guanshi Technology Group Co., Ltd.
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    Keystone Technology focuses on the transformation of business structure and the promotion of independent research and development projects, focusing on the research and development and innovation of core products, including the development and production of LCD panels and OLED functional devices, the development and production of polarizers, and the development of Open cells. Produce

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