铜峰电子：薄膜电容器产品广泛应用于多个行业

Group 1 - The core viewpoint of the article is that Tongfeng Electronics (600237) has a diverse application for its film capacitor products across multiple industries [1] Group 2 - The company's film capacitor products are widely used in home appliances, communications, power grids, rail transportation, industrial control, and new energy sectors [1]