Chengdu Zhongkeprui Purification Equipment Co., Ltd. (hereinafter referred to as "Zhongkeprui") is a national high-tech enterprise, a wholly-owned holding company under the Chinese Academy of Sciences. Relying on the technical force of the Chinese Academy of Sciences, the company has been specialized in the development of gas purification technology and equipment manufacturing, gas processing engineering, and the design and production of micro reaction devices for many years. As a member of Sichuan Industrial Catalytic Technology Innovation Alliance, it passed the ISO9001 quality management system and ISO14001 environmental management system certification in 2008. The company has strong scientific research and technological capabilities, with professors, researchers, senior engineers, and senior technicians who have been engaged in chemical experiments and scientific research work for a long time. Since 1969, the company's scientific and technological personnel have been engaged in research and product development in gas separation, purification, transmission, control, and analysis of high-purity gases, and have won the Sichuan Province Science and Technology Major Contribution Award and the Chengdu City Science and Technology Achievement Award. In the past five years, the company has undertaken a total of five projects in the field of gas purification, including the National 863 Program, National Science and Technology Support Program, and Sichuan Provincial Key Research Projects. In recent years, the company has been constantly looking for a development path of self-improvement and self transcendence. It has achieved better resource integration in terms of enterprise size, product leadership, product quality, overall solutions, and scientific and technological content. It has rapidly promoted the development of the gas purification technology industry. Its business coverage is no longer limited to the production and sales of high-purity gas purifiers. Relying on the Chinese Academy of Sciences and its own strong new technology development, new product development and industrialization capabilities, and guided by market demand, the company has continued to expand its product application fields, expanding its business scope to gas purification projects, landfill biogas pretreatment projects and other fields. In terms of laboratory devices, the company made use of the technical background of the laboratory of the Chinese Academy of Sciences Chengdu Institute of Organic Chemistry to build micro reaction devices. After years of innovative practice of the technical development team, the company launched the CGK-5Z micro reaction device. This device is a fully automatic reaction device that can achieve long-term stable and fully automatic operation. It has strong practicality and covers various aspects of chemical engineering and processes, including reaction engineering, separation engineering, thermodynamics, chemical processes, etc. It involves many fields such as petrochemicals, biochemistry, fine chemicals, environmental engineering, chemical automation, catalysis, pharmaceuticals, etc. This device can be widely used in teaching experiments in various universities, as well as in scientific research and product development in factories, enterprises, and research departments. It has been successfully applied in universities, catalyst factories, and research units such as Sichuan University, University of Electronic Science and Technology of China, Southwest Chemical Research Institute, Sichuan Chemical Catalyst Factory, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, and Institute of Biology, Chinese Academy of Sciences, and has established long-term and solid cooperation with these institutions. The company adheres to the corporate spirit of "seeking innovation and progress, practicality and excellence", and has established a complete and strict quality management system from research and development, technical support, production to after-sales service. The product quality is stable and reliable, and the after-sales service is timely and fast, striving for "defect free products and zero distance service".