Gelonghui, April 23丨An investor asked Zhongyuan Internal Distribution (002448.SZ) on the investor interactive platform. “Recently, the world's first diesel engine with a thermal efficiency of 53.09% independently developed by a Chinese company was officially released, increasing the economy by about 14%. Did your company participate in the scientific research and technical research of this project or provide supporting related low resistance friction reduction products?” The company replied that the company is currently participating in the development and supporting of related low friction engine cylinder liner products.