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    About usmore
    Guangzhou GRG Metrology &Test co., Ltd (hereinafter referred to as GRGT)is a national, comprehensive and civil-military integration of state-owned third-party metrology inspection the design improvement consulting, as well as scientific research and development
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    Key High-tech Enterprise of the National Torch Program
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    Guangzhou radioand television metrology testing Limited by Share Ltd Copyright ICP 11014689 -2, Guangdong Province