石英股份：已量产并销售半导体级石英管等多种高端石英材料产品

Core Viewpoint - The company has successfully achieved mass production and sales of high-end quartz materials, including semiconductor-grade quartz tubes, rods, cylinders, and ingots, based on semiconductor-grade high-purity quartz sand [1] Group 1: Product Development - The company has developed various high-end quartz material products specifically for the semiconductor manufacturing process [1] - The products are primarily used in critical processes such as diffusion and etching within semiconductor manufacturing [1] Group 2: Production and Supply - The semiconductor-grade high-purity quartz sand produced by the company is currently used solely for its own production needs [1]