In daily sales orders, in addition to producing conventional products, Rongjia also designs and manufactures a certain proportion of products according to customers' specific requirements. Therefore, it is particularly important to communicate with customers in various forms. In daily marketing, we not only maintain timely communication with customers through a large number of emails and phone calls, but also visit customers regularly and irregularly, and invite them to conduct on-site inspections and negotiations in the enterprise. This allows customers to walk into Rongjia, understand Rongjia, and thus trust Rongjia more.