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( 原郑州长城仪器厂 ) ,成立于 1988 年,至今已走过三十多年历程,是集研究、开发、制造、经营为一体的科技创新型企业。 Zhengzhou Great Wall Scientific Industry and Trade Co., Ltd. ( formerly Zhengzhou Great Wall Instrument Factory ) , established in 1988 , has gone through more than 30 years of history. It is a scientific and technological innovation enterprise integrating research, development, manufacturing and operation. Today, the company's products have spread throughout Asia, Europe, and the United States, covering most domestic laboratories. The Zhengzhou Great Wall brand is welcomed and trusted by customers.

80 余项,为化学、化工、生物、制药、高分子工程、电池、电子、钢铁、石油、机械、新材料等领域的科学研究和工业应用提供了精良装置。 The company takes scientific and technological innovation and serves the society as its purpose. It actively researches and develops new products, devotes itself to education and science. After long-term research and development and continuous technological accumulation, it has more than 80 independent original technologies related to vacuum and refrigeration experimental equipment . Scientific research and industrial applications in the fields of chemical industry, biology, pharmacy, polymer engineering, batteries, electronics, steel, petroleum, machinery, new materials, etc. provide sophisticated devices.

The company's products include circulating water multi-purpose vacuum pumps, diaphragm vacuum pumps, low-temperature coolant circulating pumps, circulating coolers, low-temperature constant temperature stirring reaction baths, closed refrigeration heating cycle devices, pilot low-temperature refrigeration equipment, closed high-temperature circulators, rotary evaporators, glass There are more than ten series and more than 100 models of scientific experimental instruments and industrial supporting equipment such as reaction kettles, heat-collecting constant temperature magnetic stirring baths, etc. Vacuum series and refrigeration constant temperature series are our company's iconic products, which have been leading the development of the industry for a long time, and have unique technologies in the field of low temperature and deep cold. The company's products have won bids for World Bank education projects, teacher education development projects, etc., and are widely trusted by the society.

The company has multi-level cooperation relationships with domestic universities and research institutes. It has graduate teaching bases and undergraduate practice bases, and professors, senior engineers and doctors in related fields participate in the company's research and development.

ISO9001 国际质量体系认证,公司品牌获河南省著名商标。 The company has passed ISO9001 international quality system certification, and the company's brand has won a famous trademark in Henan Province. ; 连续十年省、市守合同、重信用企业 ; 河南省技术监督局授予“质量重点跟踪企业” ; 河南省产品质量监督检验所授予“产品质量信得过单位” ; 中国市场监测中心授予“中国讲诚信、守合同、重质量典范企业” ; 郑州市技术监督局授予“质量、计量信得过单位” ; 获得 2011 年度科技部中小企业技术创新基金*批项目立项支持 ; 被郑州市认定为市级企业技术中心。 Recognized by Henan Provincial Department of Science and Technology as a high-tech enterprise in Henan ; ten years in a row with provincial and municipal contract-keeping and credit-worthy enterprises ; Henan Provincial Bureau of Technical Supervision awarded "Key Quality Tracking Enterprise" ; Henan Provincial Product Quality Supervision and Inspection Institute awarded "Reliable Product Quality Trust " ; China Market Monitoring Center awarded" China's model enterprise of honesty, contract compliance, and quality-oriented " ; Zhengzhou Municipal Technical Supervision Bureau awarded" quality, measurement trustworthy unit " ; received the 2011 Ministry of Science and Technology SME Technology Innovation Fund * project approval ; Recognized as a municipal enterprise technology center by Zhengzhou.

The company keeps the contract, respects the credibility, and serves the development of education, science and industry wholeheartedly with high-quality, superior performance products and perfect after-sales service.

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