温州宏丰：公司主营业务涵盖硬质合金产品的研发、制造与生产

Core Viewpoint - Wenzhou Hongfeng (300283) is actively engaged in the research, manufacturing, and production of hard alloy products, indicating a focus on advanced materials in its business strategy [1] Group 1 - The company's main business includes the development and production of hard alloy products [1] - The hard alloy bars produced by the company are utilized in downstream applications such as PCB drill bits and drill needles [1]