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        Gri Instrument Gri Instrument
        Gri Instrument Gas detector Excellent Manufacturer

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        Gas sensor/Gas detector/Gas analyzer/Data acquisition system Excellent Manufacturer

        • 14
          Years in industry
        • 2000+
          Total floorspace(㎡)
        • 30+
          Patents

        Hunan Guorui (GRI) Instrument Co., Ltd. was established in October 2009 in Changsha, Hunan Province, a high-tech enterprise integrating design, R&D, production and sales of advanced s...

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