我司已经建立了完善的售后服务体系及服务监督机制，由主管经理监督，受理用户的投诉，并规定售后部每月一次电话巡检，并出具质量调查报告，听取用户意见，了解产品的质量信息，及时反馈有关部门，以供提高和改进，建立产品信息库，及时了解产品使用的最新情况，并出具巡检报告。

   The company has established a sound after-sale service system and service supervisory mechanism, which is directed by the manager in charge to accept comments and complaints from users. The after-sale service department will carry out telephone follow-up survey to collect comments from users and develop a quality report. The department will immediately report the collected information related to product quality and comments from users to the relevant departments for improvement. The company has established a product information bank to keep abreast of the latest operation
condition of product.