In the sales process, with the purpose of serving customers, we provide comprehensive technical support, timely improve the technical requirements raised by customers, and provide more accurate and effective solutions. While meeting customer requirements, we use the medium to low price strategy to increase product competitiveness. We have set up a periodical information feedback group to conduct periodical return inspections on the products that have been sold,  to organize and summarize the problems feedback from customers, to establish a complete tracking file, to receive feedback for improvement in time, and implement them in place. We also establish, save, categorize, and manage our customers’ data. It is also responsible for the collection and investigation of customer status and customer application status, and assisting the Quality Department in customer satisfaction surveys; integrating existing product and resource information from the information centre, comparing similar products, analysing pros and cons, formulating promotion plans, promote the development of existing products sales, understanding the market trend, actively establishing contacts with relevant companies, striving to establish complementary partnerships, and using their platforms to sell our products and services; and grasping existing customers, tracking customer use of products at any time, and doing a good job in customers tracking and feedback work.