华正新材：主要从事覆铜板及粘结片等产品的设计、研发、生产及销售

Core Viewpoint - Huazheng New Materials (603186) is primarily engaged in the design, research and development, production, and sales of products such as copper-clad laminates, bonding sheets, composite materials, and film materials, which are widely used in various high-tech fields [1] Group 1: Company Overview - The company’s products are extensively applied in 5G communications, servers, data centers, semiconductor packaging, new energy vehicles, smart home appliances, medical equipment, rail transportation, and green logistics [1] - The direct downstream customers of the company are PCB manufacturers, indicating a strong link to the electronics manufacturing sector [1] Group 2: Market Applications - The company has corresponding product adaptations for each application area it covers, showcasing its versatility and capability to meet diverse industry needs [1]