Main products include: Nitrogen generator, hydrogen generator, and air generator; Headspace Sampler; geological logging chromatography; Pyrolysis sample injector, alcohol tester, and etc. The products have passed the test conducted by the National Analytical Instrument Quality Supervision Center (performance, environment, safety, storage and transportation), and they are widely applied in the fields such as chemical engineering, pharmacy, petroleum refinery, petroleum exploration, electric power, vintage, public security, universities, and research institutes, etc.