Tengzhou Tenghai Analytical Instrument Co., Ltd. (formerly Tenghai Analytical Instrument Factory) is a technology-based enterprise that integrates scientific research, production, sales, technical services, and instrument support. The company has a production history of over 20 years in developing and manufacturing analytical instruments. The product has passed ISO9001 quality system certification. Tenghai Analytical Instrument Co., Ltd. mainly produces gas chromatography, liquid chromatography, online chromatography, trace sulfur analyzer, multidimensional chromatography, automatic sampler, gas generator, etc. It also sells chromatography accessories and headspace sampler, oil and rock pyrolysis comprehensive evaluation instrument, geochemical logging instrument and more than ten series. The products are widely used in various industries such as power supervision, petrochemicals, quality supervision and inspection, environmental testing, scientific research institutes, colleges and universities, health and epidemic prevention, brewing, grain and oil in more than 20 provinces, municipalities, autonomous regions and municipalities directly under the central government in China. Some products are exported to countries such as Vietnam, India, and Russia. The company is located at No. 1199 Chunteng East Road, Tengzhou Economic Development Zone, covering an area of 25 acres with a factory building area of 16000 square meters. It is a manufacturer of chromatography instruments. Engineering and technical personnel, as well as personnel with intermediate professional titles, account for 70% of the total number of employees in the enterprise, while personnel with technical professional titles account for 20%. At present, the company has gathered a group of experts in electronic circuit and mechanical design and analysis, and has been guided for many times by senior figures in the chromatography field and academicians of the CAS Member. American chromatography expert Robert Stevenson has visited our company multiple times and provided guidance on our products. The company insists on continuously pursuing technological progress and steadfastly promoting the brand building of "Tenghai Chromatography".