石英股份：公司用自产高纯石英砂生产的半导体扩散、刻蚀领域用石英材料已通过了国内外重要客户认证

Core Viewpoint - The company, Quartz Co., Ltd. (石英股份), has successfully obtained certifications for its high-purity quartz materials used in semiconductors from major domestic and international semiconductor equipment manufacturers [1] Group 1: Company Developments - The company produces high-purity quartz tubes, rods, cylinders, and ingots specifically for semiconductor applications [1] - The high-purity quartz sand produced by the company has been certified for use in semiconductor diffusion and etching processes by significant domestic and international clients [1]