铜冠铜箔(301217.SZ)：高频高速铜箔已批量向下游客户供应

Core Viewpoint - The company has extensive experience in copper foil production and has established a strong customer base and core technologies, focusing on innovation and collaboration with clients [1] Group 1 - The company has been deeply engaged in copper foil production for many years, accumulating numerous high-quality customer resources and core technologies [1] - The company has successfully supplied high-frequency and high-speed copper foil in bulk to downstream customers [1] - The company relies on its own resources for independent innovation during the new product development process and maintains close communication and cooperation with clients to promote product innovation [1]