长川科技：高质量的核心专利已围绕测试机、分选机等关键产品构筑了严密的知识产权壁垒

Group 1 - The company has established a strong intellectual property barrier around key products such as testing machines and sorting machines [1] - This intellectual property strategy effectively protects the company's independent innovation achievements [1] - The company's technological moat and global market competitiveness have been significantly enhanced [1]