Beijing tiancheng network technology ltd. Is the country's top-ranked o2o service operator and solution provider. The company uses mobile interconnected ecological business alliances and city-to-city information convergence as entry points, opening markets with regional market niches as a core operating model, and successfully building and operating a one-stop eco-circle with city e-commerce/life services. The company’s core team members are from well-known internet enterprises in the country, young, sensitive and dynamic, and in the era of mobile interconnections, with professionalism, professionalism, passion, innovation and customer-centred, business-based and partner-led service guidelines, based on its own strengths in mobile-end development and operation, and with advanced technological research and development, mature and efficient platforms, win-win business services, and better access to the internet+ for users, traders, and partners. Development of engineering design software based on sky self-defined object technology; development of a new generation of tool-set-based skybuilding cad software; and provision of co-operative engineering design solutions centred on skybuilding. • business culture: human talent is the expression of the value of the enterprise; responsible and efficient employees are the greater wealth of the enterprise; respect for knowledge, respect for personality and collective struggle are the requirements for enterprise development; love for the homeland, for the people, for the cause and for life is the source of corporate cohesion; responsibility, innovation, professionalism and cooperation are the essence of the business culture; realism is the corporate code of conduct。