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. It operates through three segments: Commercial Vehicles, Passenger Cars, and Post-Treatment. The Commercial Vehicles segment develops engines, commercial vehicles, and cooling systems for engineering machinery.​​​​​​ The Passenger Cars segment supplies aluminum vacuum-welding oil coolers.​ The Post-Treatment segment is engaged in the research, design, and manufacturing of diesel and gas engines, road and off-road post-treatment, and civil environmental protection products, as well as provides customer support.