金安国纪：公司的主要产品为覆铜板

Core Viewpoint - The company, Jin'an Guoji, primarily produces copper-clad laminates, which are essential materials in the electronics industry, specifically targeting PCB manufacturers. However, the company is unable to accurately determine the proportion of its customers' products used in specific end applications [1]. Group 1 - The main product of the company is copper-clad laminates [1] - The target customers are PCB manufacturers [1] - The company lacks precise knowledge of the end application scenarios of its customers' products [1]