Yinlun (浙江银轮机械股份有限公司, Zhejiang Yinlun Machinery) is a company that specializes in the research and development, manufacturing, and sales of thermal management and exhaust gas post-treatment products. The company operates through three segments: Commercial Vehicles, Passenger Cars, and Post-Treatment. The Commercial Vehicles segment is dedicated to the research, development, and manufacturing of engines, commercial vehicles, and cooling systems for engineering machinery.​​​​​​ The Passenger Cars segment supplies aluminum vacuum-welding oil coolers.​ Yinlun is also engaged in the research and development, design, and manufacturing of diesel engines, gas engines, road and off-road post-treatment products, and civil environmental protection products, as well as provides customer support through its Post-Treatment segment.