潍柴动力：公司发动机产品绝大多数零部件为国内供应商供应

Core Viewpoint - Weichai Power (000338) emphasizes its robust domestic supply chain for engine components, ensuring stability and safety in core part supply [1] Group 1 - The majority of engine components are supplied by domestic suppliers, with some key components following a "domestic + foreign" dual supply chain strategy to meet diverse customer needs [1] - The company possesses a self-controlled supply chain system in China, which effectively guarantees the stability and security of core component supply [1]