High Purity Zinc Vacuum Vaporized Particles, 99.99% 4n Zinc Pellets, ISO9001 Certified, Custom Size, E-Beam Evaporation Semiconductor Film. High Purity Zinc Pellets: 99.99% (4N) purity with optional 99.9%, 99.95%, 99.995% available. Custom Size Options: Standard sizes 2x5mm, 3x3mm, 6x6mm with custom dimensions supported. ISO9001 Certification: Certified quality management system ensuring strict cost and scrap control. E-beam Evaporation Grade: Designed for semiconductor film, optical coating, and PVD thin-film deposition. Cylindrical Pellet Shape: High purity zinc vacuum vaporized particles in cylindrical pellet form. Anti-oxidation Packaging: Vacuum-sealed aluminum foil bags to prevent oxidation during storage. Multi-Application Versatility: Suitable for OLED, photovoltaic coating, laboratory research, and decorative metallization. Comprehensive Quality Control: TQC covers raw materials, manufacturing, outgoing inspection, and customer service.