Zhejiang Yi Shi Science and Technology Liuzhou Branch does not outsource. According to relevant public information, Yi Shi Science and Technology has developed its own products, and its main business is to develop and sell its own products. There are three business support systems: sales business support system, sales service business support system and horizontal business system, as well as many business auxiliary systems including logistics business support system, cloud kanban system, online learning (distance training), unified update management platform and operation and maintenance service platform.