Japan Korea Uses Polysilicon Silicon Dioxide Powder Manufacture. Customizable Grinding Sizes: Grinding sizes can be processed according to customers' specifications. High Annual Capacity: Factory has annual processing capacity of 50,000 tons. Strict Quality Control: Compliance with ISO9001 standards and advanced ICP inspection equipment. Multiple Grade Options: Available grades include 2202, 3303, 441, 421, 411, and 553. Wide Application Range: Used in steel making, aluminum making, deoxidizer, and semiconductor industries. OEM and ODM Services: Both OEM and ODM services are available for custom requirements. Professional Logistics: Professional logistics system ensures safe and fast delivery. One-to-One Customer Service: Reliable personalized service and sustainable supply.