6inch Quartz Diffusion Tube for Semiconductor Field. High Purity Quartz Material: Made from high purity quartz for semiconductor wafer processing applications. Customization from Designs: Supports customization based on customer drawings or design specifications. Free Surveying Services: Provides professional surveying and drawing services for free upon request. 30 Years R&D Experience: Technical team dedicated to R&D and production for over 30 years. ISO Certified Quality: Manufactured under ISO14001 and ISO9001:2015 management systems. 100% Finished Inspection: All products undergo 100% visual and functional inspection before delivery. Low MOQ Requirement: Minimum Order Quantity is just 1 unit, suitable for various scales. Fast Lead Time: Average lead time within 15 workdays for both peak and off seasons.