Henan Zhongyuan Neipei Co., Ltd. (hereinafter referred to as Zhongyuan Neipei) is a listed company that landed in the A-share market. Established in 1958. After more than 50 years of baptism, it has developed into one of the world's three largest internal combustion engine cylinder liner manufacturers, a national large-scale industrial enterprise, and the head unit of the cylinder liner working group of the National Internal Combustion Engine Standardization Technical Committee. Responsible for the formulation and revision of national standards for cylinder liner industry. National high-tech enterprises, national auto parts export base enterprises, national advanced collective of machinery industry, top 500 enterprises of Asian brands, top 500 enterprises of China manufacturing industry, top 500 enterprises of China machinery industry, and 0/00 key industrial enterprises of Henan province. The postdoctoral research center has built a platform for high-end talents to join enterprises. The trademark of Heyang Brand is a well-known trademark in China.