It is not only selling products, but providing technical support and service for customers and partners to solve the problems encountered in actual work for customers. To this end, Yi Peng turns around as a "enterprise to provide an overall solution" sales ideas such as "customer contact, negotiation, solutions, establishment of cooperative relations, construction and installation, long-term technical support and after-sales service", the enterprise and customers from the simple "business relationship" to the development of the relationship. "Long-term partnership" will fundamentally change the relationship between enterprises and customers and achieve common development between enterprises and customers.