Q6: What purity grades of quartz glass can you supply?

A: We provide quartz glass with three different purity levels to match different industry standards and usage requirements. The general industrial grade has a silica content of no less than 99.95%, which meets the demands of conventional high-temperature equipment and ordinary industrial observation windows. The semiconductor grade is the highest standard, with silica content up to 99.999%, and all metallic impurities are controlled at ppb level. This strict standard is essential to avoid contamination during wafer processing and chip production. The optical grade focuses on controlling internal defects and OH content, and we adjust the parameters according to the required spectral band to guarantee stable optical transmittance and imaging effect. All our products follow unified quality inspection procedures before delivery.