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We are a manufacturer of gas analysis instruments. While continuously deepening our roots in the industry, we are actively expanding globally and are your trustworthy gas analysis experts! Founded in 2004, CHANG AI is a world-leading high-tech enterprise in gas analysis and detection, committed to providing customers with world-class gas analysis and detection products and one-stop solutions. We have fully built a diversified ecosystem of "innovative R&D + lean manufacturing + full-process in-depth integration", and deeply layout key links of the industrial chain such as sensors, instruments and meters, and system integration solutions.