Jiuzhou is the first company in the cable TV industry to obtain ISO9001 quality system certification. All employees of the company always adhere to the quality policy of "high quality occupying the market, good service wins users, all staff strive to create benefits, continuous improvement and pursuit of excellence". Focus on quality planning and implement continuous improvement. We have established a sufficient, appropriate and effective quality management system in accordance with the new international standards, and established a complete and advanced quality control method and equipment testing center. A quality management system with management responsibilities, resource management, product realization, and measurement and analysis improvements. At the same time, regular internal quality system audits and management reviews are conducted to continuously improve the company's quality management level and ensure the adaptability, adequacy and effectiveness of the quality management system.