惠发食品：公司主要从事速冻调理肉制品研发、生产和销售

Group 1 - The core viewpoint of the article is that Huihua Foods (603536) is focused on the research, production, and sales of frozen prepared meat products, emphasizing its commitment to its main business and market expansion efforts [1] Group 2 - The company is actively increasing its market development efforts and channel construction to enhance operational performance [1]