Zhengzhou Great Wall Instruments Co., Ltd. is the headquarters established by Zhengzhou Changcheng Science, Industry & Trade Co., Ltd in Zhengzhou, a national hi-tech industry development zone of China. It is new technological innovation company integrating research, development, manufacturing and operation. Ever since its establishment, the company has employed great effort in development and innovation with respect to laboratory instrument and equipment and has gained increasing customer demands, widening product application in academies, science research institutions as well as biological, chemical and pharmaceutical enterprises, and extensive business connections with a number of countries. Zhengzhou Changcheng Instruments is not among the most welcomed and trusted brands in China.
　　After constant research and development and continuous technical accumulation, the company already holds a lot of national patents which are well promoted and applied in chemistry, chemical, biology, pharmacy and macromolecule engineering. The company produces some 10 well-trusted product serials covering more than a hundred models of instruments and equipment including multifunctional circulating water type vacuum pumps, diaphragm pumps, low-temperature cooling fluid circulating pumps, low-temperature thermostatic mixing reaction baths, enclosed cooling and heating circulators, rotary evaporators, glass reaction kettles and heat-gathering thermostatic magnetic mixing baths, of which the cooling serials and the vacuum serials have always taken the lead of the industry.
　　Toward the goal of technological innovation and social service, the company positively researches and develops new products dedicated to education and sciences. Highly recognized among its counterparts, the company was the first of the industry to pass the ISO9001 international quality system certification and has been successfully awarded contracts for WB education projects and normal school education development projects through public bidding processes. The company was accredited Henan High-tech Enterprise, listed among the provincial and/or municipal ?ontract-honoring & Promise-keeping Enterprise?for 10 consecutive years, honored as a Henan High-quality Product Trademark Enterprise, a ?ey Quality Tracing Enterprise?by Henan Provincial Technical Supervision Bureau, a ?roduct Quality Trustworthy Unit?by Henan Provincial Product Quality Supervision & Inspection Institute, a ?ontract-honoring & Quality-stressing Model Enterprise?by China Market Supervision Center and ?uality and Metric Trustworthy Unit?by Zhengzhou Municipal Technical Supervision Bureau.
　　In the tenet of ?ontract-honoring & Promise-keeping? the company is ready to contribute to the development of education, science and industry with top quality and high performance produces together with complete after-sales service.