Adhering to the corporate spirit of "integrity, honesty, pragmatism, and innovation", the corporate purpose of "pursue excellence and repay the society", the principles of "quality, enthusiasm, and speed", we sincerely serve users and strive to meet all reasonable requirements of users 100%. The company has 12 technical service centers and more than 150 full-time technical service personnel, including more than 30 overseas service centers, providing technical service support for customer service. Technical service personnel ensure that the entire process of product installation, acceptance, and operation can be effectively controlled through standardized and procedural installation and commissioning. Include product installation and debugging records in the product file for easy quality traceability in the future. The Technical Service Center has established a customer satisfaction survey follow-up specialist and a 4006-817-829 customer service hotline to ensure the efficiency of information processing. Using the concept of big data to conduct statistical analysis and improvement on customer satisfaction, ensuring the provision of high-quality services to users.