Beijing zhiyunda science and technology co., ltd., beijing is a high-technology enterprise that has been launched by senior and expert scholars in food safety and e-government for many years. Based on years of deep understanding of the industry sector, based on technology such as industry application development, embedded software development, smart cards and biometrics, rapid food safety testing, the company has been successful in the development of numerous technologies and products with autonomous intellectual property rights for business, postal, e-commerce and rapid food safety testing, and has been widely applied in most parts of the country. Beijing ji yunda technology ltd. Embraces the concept of people-centred, service-oriented business and the entrepreneurial spirit of "heavy-minded, honest and innovative" and adheres to the principles of "good faith and pragmatism" in order to provide sound solutions and professional technical support to our clients with mature products a...