双一科技：车辆部件产品在多领域的合作客户包括卡特彼勒、宇通等

Core Viewpoint - The company, Shuangyi Technology (SZ300690), has established partnerships with several prominent brands in the automotive parts sector, indicating a strong market presence and collaboration in both construction machinery and passenger/commercial vehicle segments [1] Group 1: Partnerships in Construction Machinery - The company's vehicle parts products serve clients in the construction machinery sector, including Caterpillar, Volvo, and XCMG [1] Group 2: Partnerships in Passenger/Commercial Vehicles - In the passenger and commercial vehicle sectors, the company collaborates with notable clients such as Yutong, BYD, Great Wall Motors, and Honeycomb [1]