Nanyang Zhongnan Instrument Co., Ltd. is a professional manufacturer integrating research and development, design, and manufacturing, and is managed by the Henan Instrumentation Society. The company has excellent equipment, scientific management, and perfect testing technology. The departments such as the Chief Engineer's Office, Technical Department, Inspection Department, Quality Management Department, and Finished Product Testing Laboratory cooperate closely to ensure that the product performance reaches the advanced level in China. The company currently has 48 employees, including 4 senior title researchers, 6 intermediate title technicians, 3 intermediate title managers, and 7 high school technicians. The company relies on academic institutions, connects with high-level research units and vertically links with military production enterprises, enabling the company to navigate the increasingly competitive economic wave with ease. Since its establishment, the company has successively developed a batch of national patented products such as ultra micro rotary plunger metering pumps and PI regulating self operated valves. In the past two years, the company has independently developed the ZHYQ-II crude oil automatic sampler, which is based on the international standard ISO3171 and the national standard SY/T5317-2006, and focuses on the characteristics of China's petroleum transportation. This product has both high technological content and economic practicality, making contributions to the development of China's petroleum industry. This product has applied for a national utility model invention patent in 2005 (patent number: ZL200520117896.8）。 Over the past 18 years since its establishment, the company has gone through ups and downs, forging a solid foundation for production and scientific research for Zhongnan Company. Our company's mission is to survive through quality and develop through technology. We persistently pursue the business philosophy of "satisfying customers" and strive to provide customers with high-quality products and comprehensive after-sales service. The company's general manager and all employees warmly welcome new and old customers to cooperate wholeheartedly, achieve mutual benefit, and create brilliance together.