7 18 Institute is a national key scientific research unit. 7 18 research institute was established in 1966, which belongs to China shipping group co., ltd, and covers an area of 1600 mu. Located in Handan City, Hebei Province, the branch is located in Beichen District, Tianjin. It is a national key scientific research unit integrating scientific research and development, design, production and technical services, and has won two first prizes and two second prizes for national scientific and technological progress. As a professional chemical defense research institute in China, it has always been centered on strengthening the military, and has a complete military R&D, production, testing and support capability and system. In the fields of high-energy chemistry, comprehensive management of closed environment and atmosphere, nuclear and biochemical collective protection, underwater acoustic countermeasures and so on. It has provided all kinds of advanced and reliable equipment for the navy and air force police, and made outstanding contributions to China's national defense. Based on "chemistry", with "gas" as the core and "materials" as the expansion, three pillar industries, namely special gas, hydrogen energy application and new materials, and three key cultivation industries, namely instruments, special equipment and health care, have been formed. Among them, the comprehensive strength of special gas industry is leading at home and abroad; The hydrogen energy application industry takes green hydrogen production technology as the core and is the main supplier of hydrogen production equipment system at home and abroad.